If the issue persists, reset your computer. Additionally, use System Restore and repair your Master Boot Record using Command Prompt. If the Windows System Registry file is missing or contains errors, enable the Recovery Environment, and run Startup Repair. For more information on how to clean install Windows, go to Microsoft’s support page. Follow the on-screen steps to reinstall the OS. After that, start up your device from the bootable USB drive you just created.

Then, create a bootable Windows 10 Installation Media on another computer. If none of the methods listed above work, you may need to wipe your machine and perform a clean install. If it does, use the second option, keep only your personal files and uninstall your apps. Select the first option, hit the Reset button, and check if the issue persists. Then click on Troubleshoot, and select Advanced options.

Follow the steps above to boot into Windows Recovery Environment. If the issue persists, you’ll need to reset your computer.

Restart your computer and check the results.Then enter the commands below one by one to rebuild your Master Boot Record.Select Command Prompt, and wait for the CMD window to appear on the screen.Then select Troubleshoot, and go to Advanced options.Boot into Windows Recovery Environment as shown above.Use it and check if the System Registry issue persists. Select the System Restore option and check if you have a restore point you can go back to. If the problem persists, go back to Troubleshoot, and select Advanced Options. Then select Startup Repair and hit the Restart button.The Windows Recovery Environment (WinRE) should now be visible on the screen.Turn on your machine again, but this time let it start up completely.Hold down the power button and turn off your device.When the Windows logo appears on the screen, press and hold the power button again to turn off your device.Use the power button to turn on your device.Press and hold down the power button for 10 seconds to shut down your computer.This will help you boot into Recovery Environment. To use this option on your Windows machine, you’ll need to shut down and restart the device three times in a row. What to Do if Windows System Registry File Is Missing Or Contains Errors Run Startup Repair

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