
Fix 2. Repair and Rebuild MBR
Most of the time, it is seen that when the MBR is corrupted, our PC fails to start correctly and stuck on the booting window. So, if your MBR is also gets corrupted, then how will you troubleshoot it? Well, the process is straightforward. Yes, you can run the Repair or rebuild MBR commands in the recovery window.
- You can use an installation disk or bootable USB to boot up your PC. Hover over to the Repair your computer and then click on the troubleshoot followed by Advanced options and Command Prompt.
- Then, use the following command:
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd
- At last, type Exit and restart your PC to check if the issue gets resolved.
When you are in the Advanced Options window and running the SystemSystem Restore process (this will help you restore your SystemSystem restore point when everything is working well, according to you). Performing a system restore is also an effective option to fix the computer that won’t start after the recent upgrade. However, we highly recommend you try this method once when the performing startup repair doesn’t help you to fix the problem.
You can quickly restore your device and again started using your PC. Select any previous working state to repair your PC. Meanwhile, restoring the process might take several minutes or even hours, depending upon the size of files you have on your PC. So, you need to wait until it gets completed. But, keep in mind that do not turn off your PC during the whole process of system image recovery. In the meantime, when the process gets finished, you can reboot your PC, and most probably now, you are able to boot into your System.
This process will help you fix the damaged system file, due to which you are facing such kind of error on your Windows 10 PC, so if you don’t know how to run SFC or DISM to repair the corrupted system file.
- Now, in the Advanced Options interface, click on the Command Prompt.
- Then, use the command sfc/scannow and hit the enter.
- After that, now SFC scan will automatically start to check all system files.
- Then, repair the damaged files with the correct versions and reboot your System.

Fix 5. Boot into Safe Mode
Here are some steps that you can use to boot into safe mode on Windows 10:
- Go to the Advanced Options window with an installation CD, or you can initiate.
- Click on the Advanced Options followed by Troubleshoot and Advanced Options.
- After that, go to the Startup Settings and click on Restart.
- After that, you need to press 4 or F4 to enable the Safe Mode. Or you can also enable safe mode by press 5 or F5 with networking.
Fix 6. Uninstall Windows 10 Updates
Uninstalling the Windows 10 updates might also helpful to you as it helps many users worldwide to fix the computer that won’t start after the upgrade.
- Go to the Advanced Options window with an installation CD, or you can initiate.
- Click on the Advanced Options followed by Troubleshoot and Advanced Options.
- After that, hit the Uninstall Updates button.
- Now, once you click on that, you’ll get two options Uninstall the latest feature update or Uninstall the latest quality update. So, select one of them.
- Now, to uninstall the updates, you need to follow the on-screen instructions. Then, reboot your Windows 10 PC. Now, most probably your computer wills tart normally.
Additional Fixes:
- You can also reset your PC if nothing helps you to fix the issue.
- Performing a clean install of Windows 10 on your computer is another useful method. So, you may try this once.
So, that’s all we have for you on fixing if your computer won’t start after the upgrade. We hope this guide helped you. Meanwhile, if you have any doubts or stuck while applying the mentioned fixes, you can feel free to reach us in the comment box.