At times UNnetbootin is not working on Windows 10, and this is usually followed by Failed to start error. The full error reads Windows failed to start A recent hardware or software change might be the cause. Unfortunately, the error message does not give much to work with. This error is usually triggered if the Live USB was not created properly, and in this guide, we’ll show you how to fix this issue.

How do I fix UNetbootin error?

1. Change BIOS Setup

The reliable workaround for the UNetbootin Windows failed to start error is to modify your BIOS setup as shown below.

  1. Press the Windows key + I to open Settings.

  2. Go to Update & Security.  

  3. Open the Recovery tab from the left pane.

  4. Scroll down to Advanced startup and click the Restart Now button.  

  5. After the Restart, select the Troubleshoot option.

  6. Under Advanced options, choose UEFI firmware settings.

  7. Confirm the restart. This will allow you to enter BIOS on your Windows 10 PC. SPONSORED

  8. After entering the BIOS, open the Boot tab.

  9. Set UEFI/BIOS Boot Mode to Legacy.

  10. Save the changes and exit BIOS.

Restart your PC and try to boot with the live USB. Check if the UNetbootin not working in Windows 10 error is resolved.

2. Disable Secure Boot 

If the error persists, disable Fast startup in Windows 10. Fast Startup is a feature designed to reduce boot time. However, it prevents the computer from completely shutting down, which can lead to compatibility issues.

3. Disable Fast Startup

4. Create a new Live USB 

One of the common reasons for Windows failing to start – A recent hardware or software change might be the cause is a corrupted Live USB drive created using UNetbootin. To make sure the Live USB was created properly, create a new bootable drive using the existing ISO file. This would eliminate any chances of error that may have triggered due to missing or corrupt files in the drive.

5. Check ISO files for error

If the UNetbootin is still not working after creating a new live USB, check your ISO image for errors. Incomplete download or corrupted files may cause the installation to file. Download the latest version of the ISO image available from the official source. Then create a new bootable drive and check for any improvements. Alternatively, try using boot repair software. If you are experiencing an error on an existing installation, boot repair tools can fix computer booting issues and repair corrupted files.

6. Create bootable drive with Rufus 

Rufus is a popular utility to create bootable USB flash drives. If UNetbootin is not working, Rufus is an excellent alternative with a uncomplicated interface.

7. Fix Windows bootloader using Windows 10 USB

The UNetbootin not working in Windows 10 Failed to start error is triggered due to faulty bootable drive or corrupted ISO image. Try changing the BIOS setup to fix the error. If not, use an alternative flash drive creator utility like Rufus. Did you find a solution to this problem on your own? Don’t be shy and share it with us in the comments section.

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