Trending February 2024 # How To Check Whether A Usb Drive Is Bootable In Windows # Suggested March 2024 # Top 4 Popular

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If you have created a bootable USB drive, you may be wondering whether it will successfully initialize and boot. You don’t always have to restart your PC/laptop to find out. The following techniques can easily determine whether a USB drive is bootable in Windows 10/11. These include methods native to your Windows system as well as external recommended software.

How to Create a Bootable USB Drive

Here’s a quick primer that shows how to make a USB drive bootable and check the bootable status of such drives.

1. Using BalenaEtcher

For Windows systems, the fastest and most reliable way is to download and install BalenaEtcher. This software readily etches any ISO file on the USB drive.

After installing, open the application and select your current USB drive as the source drive.

    Many ISO files (the following example is for Raspberry Pi Desktop) can be huge. Fortunately, you don’t always need to first download the ISO separately.

      Copy-paste the ISO download link, and it will etch much faster on your drive.

        All the data on the drive will be erased while a bootable media is created. In some cases, the USB drive will decompress first, which may take a little while.

          Wait for the USB drive to start flashing. This stage is seen after decompression is completed or directly afterward.

            After flashing, BalenaEtcher will validate the bootable disk, which doesn’t take very long.

              You’ll see a “Flash Complete” message once the USB drive is converted into a bootable disk.

              2. With Rufus

              Rufus is a commonly-used bootable disc/USB drive creator. As an open source application, it’s lightweight, and you have a choice not to install anything. Check this guide to learn how to use Rufus properly.

              Here’s a quick summary of how to create a bootable drive with Rufus.

              Check USB Drive Bootable Status From Disk Management

                If you don’t see the “No Media” status in the USB Device Properties, it means you cannot create a bootable device.

                Check USB Drive Bootable Status From Command Prompt

                Another way to check the external drive’s bootability is to run a few lines on the Command Line prompt.

                Open cmd from “Search” and make sure you run in Administrator mode.

                  Enter the following commands:

                  diskpart list disk

                    The formatted removable media with ISO will display “No Media/No Volume” or very little volume in MB.

                    Check USB Drive Bootable Status From Windows PowerShell

                    Even Windows’ PowerShell can give a quick overview of the drive’s bootability.

                    Look for PowerShell using the “Search” functionality in Windows and run it as Administrator.

                      Enter get-disk to gather information about your USB drive.

                      Check if the device health status is “Healthy” and whether it displays “No Media” operational status and 0 Bytes volume (or very low volume).

                      Check Whether USB Is Bootable Using MobaLiveCD

                      The easiest third-party software to check a drive’s bootable state is MobaLiveCD, a wrapped-for-the-Qemu-system emulation software. It will actually run a virtual machine (an ad-hoc one) and attempt to boot from your USB, so it’s a fairly robust way to check the drive’s bootable state.

                        Choose the USB drive you want to test from the drop-down menu. In this case we’ve selected the “F:/ drive.” If you’re not sure what the drive letter is, check an Explorer window and locate the drive in the sidebar.

                          The Qemu emulator will boot the USB drive. You’ll also see a command prompt appear with a little boot-up text. This means the virtual machine is attempting to boot from the drive you selected in the previous step.

                          If you get a message that the USB drive is not bootable, it doesn’t always mean that’s the case, as counterintuitive as it may sound. There is one last method you can try below.

                          Using Magic ISO Maker to Test Disk Images

                          You can also use the (admittedly very old) freeware Magic ISO Maker to see whether a disk image is bootable. This actually works best on images, but it’s a good way to ensure an image is bootable before you burn it to a USB.

                          Download Magic ISO Maker.

                          Open the software and chose “Open” from the “File” menu.

                            Choose your ISO file from the menu.

                              Look in the menu bar. If it says “Bootable,” that ISO will be bootable once it’s burned to a CD or USB drive. If it doesn’t say bootable, it obviously won’t work to create bootable media.

                              Frequently Asked Questions What format does USB have to be to remain bootable?

                              For Windows 10/11, the USB drive should not be in NTFS format, as it can’t boot from a USB device. FAT32 format should be used. However, if you’re diagnosing USB capabilities, NTFS can be used with Windows systems.

                              Is there a way to know if an ISO is bootable?

                              Yes. A service like PowerISO helps you determine whether an ISO is bootable. If you want to start over, we can show you how to format USB drives on Windows and format drives in FAT32 specifically, if required.

                              Image credit: Kaboompics via Pexels All screenshots by Sayak Boral

                              Sayak Boral

                              Sayak Boral is a technology writer with over eleven years of experience working in different industries including semiconductors, IoT, enterprise IT, telecommunications OSS/BSS, and network security. He has been writing for MakeTechEasier on a wide range of technical topics including Windows, Android, Internet, Hardware Guides, Browsers, Software Tools, and Product Reviews.

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                              You're reading How To Check Whether A Usb Drive Is Bootable In Windows

                              How To Check Whether A Number Is A Harshad Number Or Not In Java?

                              Harshad number can be defined as a number which is divisible by the sum of its digits. Simply it means if the sum of the digits of the number is a factor of that number then it is a Harshad number.

                              In this article we will see how to check Harshad numbers by using the Java programming language.

                              To show you some instances Instance-1

                              Input number is 18

                              Let’s check it by using the logic of Harshad number −

                              Sum of the digits of the number = 1 + 8 = 9.

                              So, 18 is divisible by 9.

                              Hence, 18 is a Harshad number.

                              Instance-2

                              Input number is 3

                              Let’s check it by using the logic of Harshad number −

                              Sum of the digits of the number = 3.

                              So, 3 is divisible by 3.

                              Hence, 3 is a Harshad number.

                              Instance-3

                              Input number is 15

                              Let’s check it by using the logic of Harshad number −

                              Sum of the digits of the number = 1 + 5 = 6.

                              So, 15 is not divisible by 6.

                              Hence, 14 is not a Harshad number.

                              Some other examples of Harshad numbers include 1, 2, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20 etc.

                              Syntax

                              To convert integer value to String value by using inbuilt toString() method.

                              Following is the Syntax to get total number of digits in a number by converting the integer value to String value and then finding its length and assigning the length to an integer variable −

                              String str = Integer.toString(input_number);

                              To get the length of the Integer, we will use the Java String class inbuilt length() method which returns the length of the String object.

                              int length = st.length();

                              To get the character at a specific position/index in a string we use the charAt() method. Where charAt(i)-‘0’ returns the actual integer value.

                              int num = st.charAt(i)-‘0’;

                              Where ‘st’ refers to the string ‘i’ is the iterator variable to iterate the string.

                              Algorithm Algorithm 1

                              Step 1 − Get an integer number either by initialization or by user input.

                              Step 2 − By iterating each digit of the number, find the sum of each digit of the number.

                              Step 3 − Then check if the original number is divisible by the sum of all digits of the number. If divisible then the given number is a Harshad number else it is not a Harshad number

                              Algorithm 2

                              Step 1 − Get an integer number either by initialization or by user input.

                              Step 2 − Convert that integer to String by using inbuilt toString() method.

                              Step 3 − Find the length of the String by using the inbuilt length() method.

                              Step 4 − Then by using a for loop, iterate till the length of the String and get one by one integer value from String by using charAt(i)-‘0’ and keep a track on the sum of all digits.

                              Step 5 − Then check if the original number is divisible by the sum of all digits of the number. If divisible then the given number is a Harshad number else it is not a Harshad number.

                              Multiple Approaches

                              We have provided the solution in different approaches

                              Without Using String

                              By Using String

                              Let’s see the program along with its output one by one.

                              Approach-1: Without Using String

                              In this approach, an integer value will be initialized in the program and then by using the Algorithm-1 we can check whether a number is a Harshad number or not.

                              Example

                              public

                              static

                              void

                              main

                              (

                              String

                              args

                              [

                              ]

                              )

                              {

                              int

                              originalNumber

                              =

                              21

                              ;

                              System

                              .

                              out

                              .

                              println

                              (

                              “Given number: “

                              +

                              originalNumber

                              )

                              ;

                              int

                              copyOfOriginalNumber

                              =

                              originalNumber

                              ;

                              int

                              sum

                              =

                              0

                              ;

                              int

                              rem

                              =

                              originalNumber

                              %

                              10

                              ;

                              sum

                              =

                              sum

                              +

                              rem

                              ;

                              originalNumber

                              =

                              originalNumber

                              /

                              10

                              ;

                              }

                              if

                              (

                              copyOfOriginalNumber

                              %

                              sum

                              ==

                              0

                              )

                              System

                              .

                              out

                              .

                              println

                              (

                              copyOfOriginalNumber

                              +

                              ” is a Harshadnumber”

                              )

                              ;

                              else

                              System

                              .

                              out

                              .

                              println

                              (

                              copyOfOriginalNumber

                              +

                              ” is not a Harshadnumber”

                              )

                              ;

                              }

                              }

                              Output Given number: 21 21 is a Harshad number Approach-2: By Using String

                              In this approach, an integer value will be initialized in the program and then by using the Algorithm-2 we will check if the number is a Harshad number or not.

                              Example

                              public

                              static

                              void

                              main

                              (

                              String

                              args

                              [

                              ]

                              )

                              {

                              int

                              originalNumber

                              =

                              40

                              ;

                              System

                              .

                              out

                              .

                              println

                              (

                              “Given number: “

                              +

                              originalNumber

                              )

                              ;

                              int

                              copyOfOriginalNumber

                              =

                              originalNumber

                              ;

                              int

                              sum

                              =

                              0

                              ;

                              String

                              str

                              =

                              Integer

                              .

                              toString

                              (

                              originalNumber

                              )

                              ;

                              int

                              length

                              =

                              str

                              .

                              length

                              (

                              )

                              ;

                              for

                              (

                              int

                              i

                              =

                              0

                              ;

                              i

                              <

                              length

                              ;

                              i

                              ++

                              )

                              {

                              sum

                              +=

                              str

                              .

                              charAt

                              (

                              i

                              )

                              ‘0’

                              ;

                              }

                              if

                              (

                              copyOfOriginalNumber

                              %

                              sum

                              ==

                              0

                              )

                              System

                              .

                              out

                              .

                              println

                              (

                              copyOfOriginalNumber

                              +

                              ” is a Harshad number”

                              )

                              ;

                              else

                              System

                              .

                              out

                              .

                              println

                              (

                              copyOfOriginalNumber

                              +

                              ” is not a Harshad number”

                              )

                              ;

                              }

                              }

                              Output Given number: 40 40 is a Harshad number

                              In this article, we explored how to check a number whether it is a Harshad number or not in Java by using different approaches.

                              How To Check Whether A Radio Button Is Selected With Javascript?

                              In the HTML, the radio buttons allow developers to create multiple options for a choice. Users can select any option, and we can get its value and know which option users have selected from the multiple options.

                              So, it is important to check which radio button the user selects to know their choice from multiple options. Let’s understand it via real-life examples. When you fill out any form and ask to choose a gender, you can see they give you three options, and you can select only one.

                              In this tutorial, we will learn two approaches to checking whether a radio button is selected using JavaScript.

                              Using the checked property of the radio button

                              We can access the radio element in JavaScript using various methods. After that, we can use its checked property to check whether the selected radio button is checked. If the value of the checked property is true, it means the radio button is selected; otherwise, it’s not selected.

                              Syntax

                              Users can follow the syntax below to check whether the radio button is selected using the checked property of the radio element.

                              let radio1 = document.getElementById(‘radio1’); if(radio1.checked){ }

                              In the above syntax, we have accessed the radio button using its id and used the checked attribute to check whether the radio button is selected in the if-statement.

                              Example

                              In the example below, we have created three radio buttons containing different values, such as male, female, and others. In JavaScript, we have accessed each radio button by its id and checked the value of every radio button’s ‘checked’ property.

                              let output = document.getElementById(“output”); function checkRadio(){ let radio1 = document.getElementById(‘radio1’); let radio2 = document.getElementById(‘radio2’); let radio3 = document.getElementById(‘radio3’); if(radio1.checked){ output.innerHTML = “The radio button with value ” + radio1.value + ” is checked!”; } if(radio2.checked){ output.innerHTML = “The radio button with value ” + radio2.value + ” is checked!”; } if(radio3.checked){ output.innerHTML = “The radio button with value ” + radio3.value + ” is checked!”; } }

                              Example

                              The example below is almost the same as the one above, but the difference is that we are accessing all radio buttons using their name at once. The getElementByName() method returns all radio elements with the name radio.

                              After that, we used the for-of loop to iterate through the array of radio buttons and check for every radio button using the ‘checked’ property whether the radio button is selected.

                              let output = document.getElementById(“output”); function getSelectedRadio() { let radioButtons = document.getElementsByName(‘radio’); for (let radio of radioButtons) { if (radio.checked) { output.innerHTML = “The radio button is selected and it’s value is ” + radio.value; } } }

                              Use the querySelector() method to check whether a radio button is selected

                              Programmers can use JavaScript’s querySelector() method to select any HTML element. Here, we have used the querySelector() method to select only the checked radio button. If no radio button is selected, it returns a null value.

                              Syntax

                              Users can follow the syntax below to use the querySelector() method to check whether the radio button is selected.

                              var selected = document.querySelector('input[name="year"]:checked');

                              In the above syntax, ‘year’ is the name of the group of radio buttons, and it returns any radio button which belongs to the ‘year’ group and is checked.

                              Example

                              let output = document.getElementById(“output”); function getSelectedRadio() { var selected = document.querySelector( ‘input[name=”year”]:checked’); if (selected) { output.innerHTML += “Radio button is selected.” } else { output.innerHTML += “Not any radio button is selected!” } }

                              Users learned two different methods to get the checked radio buttons using JavaScript. The best way to do this is to use the querySelector() method, as we need to write only a single line of code.

                              How To Check Hard Drive Health In Windows 11/10

                              In any aging computer, the hard disk is usually the first thing to go. This is because unlike components like RAM or the processor, an HDD has more moving parts.

                              If you wait for your hard drive to fail before you replace it, there is a good chance of losing all the data on it. It’s much better to watch the hard disk’s health and move your information to an external hard drive before it dies on you.

                              Table of Contents

                              Which brings us to the obvious question: How do you check the health of your hard drive?

                              Check the S.M.A.R.T. Status of Your Drive

                              If your PC’s hard disk drive isn’t too old, chances are that it already comes with self-monitoring technology. Called S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology), this nifty system can tell you the status of your disk drive without requiring any complicated software.

                              You can get basic data about your SSD’s S.M.A.R.T. status using the built-in WMIC (Windows Management Instrumentation Command-line) tool in Windows 10 and Windows 11.

                              First, run Command Prompt by searching for CMD in the Start Menu.

                              Now enter the command wmic diskdrive get model,status

                              This will display all the drives you have installed, along with their status. An OK means the drive is functioning properly, while a Pred Fail means it is about to fail.

                              You can also use the wmic diskdrive get status command if you only have one drive on your PC.

                              CrystalDisk Info is one such application. It can provide a detailed roundup of the SMART information of both internal and external disk drives, allowing you to understand the health of your drive much better.

                              2. Use the HDD Manufacturer’s Diagnostic Tool

                              Not all hard disk drives come with S.M.A.R.T. technology to check their health status. It is mostly solid-state drives that can monitor themselves; older drives usually don’t have a built-in option.

                              Fortunately, leading hard drive manufacturers like Seagate, Western Digital, and Samsung have a dedicated app for checking the status of their storage devices.

                              These apps test the HDD for bad sectors and system errors, giving you an accurate look into the chances of a complete drive failure. For drives without built-in error checking, this is usually the best way to diagnose any issues.

                              3. Test the HDD in BIOS

                              If you are having trouble finding your hard disk manufacturer’s diagnostic tool and don’t have a S.M.A.R.T. drive, you can always check its health from the BIOS. All motherboards have a BIOS that can be used to verify the status of all hardware components, including the hard disk drive.

                              As this interface is OS independent, it also prevents any interference from the operating system or any running application from messing up the test results.

                              The only problem is triggering it. First, you need to get to the BIOS, which works differently for different motherboards (usually by tapping a particular function key). Then you need to locate the test itself.

                              4. With the CHKDSK Utility

                              So far we have seen methods to check the disk for hardware faults, but that’s not all that can go wrong with an HDD. Apart from bad sectors, the file system itself can also get corrupted, leading to data loss and an unusable hard drive.

                              To detect and repair these issues, you can use the Microsoft Windows chkdsk tool. It’s a command-line utility that scans the disk drive and fixes logical errors, making corrupted sectors usable again.

                              To use the CHKDSK tool, open Command Prompt. Type cmd in the Start Menu’s search bar to find it.

                              When the Command Prompt window opens up, type this command and press Enter:

                              chkdsk C: /F /R /X

                              where C is the drive letter of the disk you wish to scan. This will run CHKDSK and recover any corrupted sectors discovered. Note that Check Disk is limited in its data recovery capabilities, mostly meant as a way to repair a corrupted file system.

                              5. Install a Third-Party Disk Checking Tool

                              If you don’t have an issue with downloading third-party apps, it can often be the easiest way to get a detailed look into your HDD’s health. Dedicated hard drive scanning software provides much more information about the status of the hard disk than built-in Windows tools.

                              We have already talked about CrystalDisk Info, but it’s not the only option for reading all S.M.A.R.T. information from your drive. There is Hard Disk Sentinel and HDDScan, that can diagnose all types of disk drives, from SSDs to complex RAID setups. The reports generated by these apps are far more detailed than basic Windows diagnostics and can help you catch a failing hard drive much sooner.

                              What Is the Best Method to Check Hard Drive Health?

                              For most users, getting a basic S.M.A.R.T. status check is enough to see if their hard disk is on the verge of failing or not. If you want more details, you can always use third-party tools like CrystalDisk Info or HDDScan to get a complete report.

                              Things get trickier when your HDD doesn’t support S.M.A.R.T. technology. While running a CHKDSK scan on the hard drive is always a good idea to root out file system errors, you ultimately need something else to diagnose hardware faults.

                              How To Make A Usb Security Key In Windows Using Usb Raptor

                              Ever wanted to lock and unlock your computer with a USB drive or a physical key? It does look cool and also adds another layer of security to your computer. Unlocking a computer with a USB drive is more convenient and quick, and USB Raptor is a great tool that lets you do this and adds USB protection to your computer. The tool is flexible and completely open-sourced so you can sneak into it to customize it your way. You can easily set up a USB lock mechanism as the program provides the best security possible.

                              We have already see how we can use the built-in SysKey Utility in Windows 11/10/8/7, to lock the computer using a USB stick, and take a look at some other free software to lock & unlock Windows PC using USB Pen Drive. Now let us take a look at USB Raptor.

                              How to make a USB Security Key in Windows 11/10

                              To get started, you need a USB Pen Drive. You need to set up a master password when you run USB Raptor for the first time.

                              Once done with that, you can select your USB drive from the drop-down and then hit the ‘Create k3y file’ button. A hidden encrypted key file will be generated and saved on the USB drive. You must ensure that the file doesn’t get deleted or you’ll be unable to unlock your computer using that USB drive and in that case, you’ll need to unlock using any other alternate methods.

                              Having done this, you can enable USB Raptor and then minimize it to the system tray to keep it running in the background, so that the next time the USB Drive is removed from the computer, the computer will be locked and it will be again accessible only after you connect that USB drive or use the master password. This was all about the Basic Mode.

                              There are two types of locks available: System Lock and USB Raptor Lock (Insane lock). USB Raptor Lock is tougher and recommended. There are also options to delay the lock for some duration, enable sounds, customize the lock screen, enable/disable the Clock, ID, USB Raptor Logos, write custom texts, add custom logos, and enable random colors as well.

                              For your information, the system can also be locked without using the USB drive, if you’ve disabled USB locking and if the tool is being used in the Network Mode.

                              Backdoor access can also be controlled. Features such as unlocking by a master password, network commands, etc, can be enabled as well.

                              USB Raptor also supports network commands. You can run it in Master Mode to send commands to other computers. USB Raptor could be made to run in Slave Mode to receive commands from the master computer. You can enable Network sync so that if the master computer is locked, slave computers will also get automatically locked.

                              USB Raptor download Can I turn my USB into a security key?

                              Yes, you can turn your USB device into a security key. Although Windows 11 or Windows 10 doesn’t have any option by default, you can use third-party programs to get the job done. For your information, USB Raptor is one of the best apps you can find to convert your USB device into a security key on a Windows PC.

                              How do I setup my USB Raptor?

                              The setup process for the USB Raptor is pretty straightforward, and you do not need to spend much time on this. You can go through the screen instructions to set things up. However, it is recommended to follow the aforementioned steps so that you can learn everything minutely and set up everything as per the requirements.

                              Read next: Free software to Lock and Unlock Windows PC using USB Pen Drive.

                              What Is Port And How To Check If Port Is Open In Windows 10?

                              What is Port And How To Check If Port is Open in Windows 10? What is a port?

                              In computers, several applications are running which get data and information from the different servers on the internet. IP address and port number play a pivotal role in this process because they act as a carrier between server and applications running. You can consider an IP address as the street address and port number as the house number on that street. If either of them is missing or changed, then it won’t give appropriate results.

                              Use Netstat to check if port is open or not.

                              This is the simplest way to check whether the port is open or not in Windows 10. As we can understand by the name Netstat is the shortcut for network statistics. It will show a detailed explanation of the ports which are used by IP addresses.

                              Search command in Cortana search bar and run as administrator.

                              Now type netstat –ab and then press enter.

                              Now a list will be displayed which will show all running processes. The open port number will be after the last colon on the local IP address on the left-hand side.

                              The heading with the State of LISTENING is the processes that are in contact with open ports.

                              Type netstat –aon and press enter to know the program’s name that is opened with a specific port. You will be able to see the protocol the app is using, IP address (local and remote), PID of the application using that port.

                              Check the PID field you noted from the command prompt.

                              Using third party app to check if all ports are working:-

                              If you are looking for an alternative to command prompt then TCPView, PORTQRY Command Line Port Scanner, Nirsoft CurrPorts are some of the best options for you to check for open ports. These are easy-to-use third-party apps.

                              1. TCPView

                              TCPView gives a list of all the running processes and the open ports associated with them. The app offers a display of opening and closing of ports and packet transfer in real-time. It is included in Microsoft Sysinternals.

                              2. PORTQRY Command Line Port Scanner

                              This is another third-party tool used to scan your computer for open ports. You have to install PORTQRY Command Line Port Scanner and then open it in administrator mode. It is installed in the C drive (C:PortQryV2 directory) therefore the directory of your command prompt is changed to that directory.

                              Type command portqry.exe -local to view all the open TCP and UDP ports for the computer.

                              3. Nirsoft currports

                              Nirsoft currports is the last but not the least tool to check the ports which are in use by the services and applications on the computer. You have to glance at the local port section to identify which ports are active.

                              Conclusion: –

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