Regback Copy Not Working [best] Jun 2026

The reg save command utilizes the native Registry API, which knows how to read locked hives. It copies the data directly to a new file, bypassing the "file in use" error.

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). regback copy not working

Before Windows 10 version 1803, the operating system had a built-in safety feature. It would automatically create backup copies of the most critical parts of your system registry and store them in the C:\Windows\System32\config\RegBack folder. These backups were a lifeline. If your main registry files became corrupted (often due to a sudden shutdown, malware, or a bad driver install), you could boot into a recovery environment, navigate to the RegBack folder, and copy those backup files back to the main C:\Windows\System32\config folder, effectively restoring your system to a working state. The reg save command utilizes the native Registry