bootrec /fixboot (If you get an "Access is denied" error, type bootsect /nt60 sys or bootsect /nt60 ALL first, then retry). bcdedit /export C:\bcdbackup attrib C:\boot\bcd -h -r -s ren C:\boot\bcd bcd.old bootrec /rebuildbcd Type Y when asked to add the installation to the boot list. Restart your computer. Solution 3: Run SFC and DISM in Offline Mode
If you cannot boot into Windows and have no backups available, consider these final options:
KB, but you are still having trouble restoring them, use this method via Windows Recovery Environment (WinRE):
Check the comments below for community-driven solutions, or consult Microsoft's official documentation on the RegIdleBackup task. Your system's stability depends on a healthy, regularly backed-up registry. regback copy not working
For IT professionals, system administrators, and advanced Windows users, the Registry is the central nervous system of the operating system. Before making significant changes—whether cleaning up malware remnants, tweaking group policies, or manually removing stubborn software—creating a backup of the Registry is standard operating procedure.
$Action = New-ScheduledTaskAction -Execute "%windir%\system32\reg.exe" -Argument "save HKLM\SYSTEM %windir%\system32\config\RegBack\SYSTEM /y" $Trigger = New-ScheduledTaskTrigger -Daily -At 2:00AM Register-ScheduledTask -TaskName "RegIdleBackupManual" -Action $Action -Trigger $Trigger -User "SYSTEM"
Right-click and create a new named EnablePeriodicalBackup . Set the Value data to 1 . bootrec /fixboot (If you get an "Access is
Try to restore from RegIdleBackup (if it exists) rather than the empty RegBack . Summary Table: Old vs. New Registry Backup Pre-Windows 10 (1803) Windows 10 (1803) & Windows 11 Enabled (Populated) Disabled (0KB Files) Recovery Method Copy from \RegBack System Restore / DISM Registry Location \System32\config\ \System32\config\
: To populate the folder immediately, go to Task Scheduler > Microsoft\Windows\Registry and right-click the RegIdleBackup task to select Run . 🚑 Alternatives for Immediate System Recovery
: When using the command copy *.* .. in the recovery console, you may receive the error "The system cannot find the file specified" or "0 file(s) copied" because the source files are empty or missing. 🔧 How to Fix and Re-enable RegBack Solution 3: Run SFC and DISM in Offline
Windows Registry protection goes beyond standard UAC. Even an Administrator account runs with filtered tokens. The SYSTEM account and TrustedInstaller have higher privileges than your admin account. Without taking ownership or using specific backup privileges, the copy operation will fail with "Access Denied."
To help me tailor the best recovery steps for your specific situation, let me know: Is your computer currently into Windows?