A buggy Windows update is a frequent cause of sudden boot failures. Go back to the menu in WinRE. Click on Uninstall Updates .
You cannot back up the HKLM\HARDWARE hive—it is volatile and recreated each boot.
This is the most effective fix for Windows 10/11 systems where the RegBack folder contains empty files. regback copy not working
Follow these methods in order—from simplest to most advanced—to restore full registry backup functionality.
After restore, verify RegBack functionality. A buggy Windows update is a frequent cause
Follow the prompts to reinstall Windows. Your applications will be removed, but your personal documents, photos, and user data will be safely preserved in a Windows.old folder.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. You cannot back up the HKLM\HARDWARE hive—it is
Boot into the via a bootable USB or by crashing the boot process three times. Go to Troubleshoot > Advanced Options > Command Prompt .