Regback Copy Not Working Jun 2026

copy C:\Windows\System32\config\RegBack\SYSTEM C:\Windows\System32\config\

From the Advanced Startup menu, go to > Advanced Options > Command Prompt .

If you want the old automatic backup system (where actual, copyable files appear in RegBack ), you can re-enable it via the Registry (ironic, we know).

The C:\Windows\System32\config\RegBack folder still exists, but the files inside (SYSTEM, SOFTWARE, SAM, SECURITY, DEFAULT) are empty. regback copy not working

If a corrupted registry is causing boot loops, offline system repairs can often fix the underlying system files.

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The most common mistake when trying to restore from a RegBack folder is attempting to do it while Windows is running. Because the active registry hives in the C:\Windows\System32\config folder are constantly in use, you will always get an "Access Denied" error. The only correct way to do this is from outside your main Windows installation. If a corrupted registry is causing boot loops,

Starting with (released in 2018), Microsoft officially changed how the registry is handled to reduce the overall disk footprint of the operating system.

Once the SFC scan completes, run a deployment image repair tool check: dism /image:C:\ /cleanup-image /restorehealth 3. Uninstall Recent Windows Updates

Since your current RegBack files are likely empty, you should use these methods to fix registry issues: System Restore If you share with third parties, their policies apply

Check C:\Windows\System32\config\RegBack to verify the files are no longer 0 KB. Method 3: Use the Command Prompt "SFC" and "DISM" Tools

If you navigate to C:\Windows\System32\config\RegBack today, you will likely see files of 0KB or 64KB (placeholder files). This is —it is the new default.

❌ No — It’s a combination of:

A buggy Windows update is a frequent cause of sudden boot failures. Go back to the menu in WinRE. Click on Uninstall Updates .