Fix for System File Checker Error 0x000006ba RPC Server is unavailable

When you attempt to run the System File Checker (sfc.exe /scannow command) to restore missing or corrupted system files, the following error message may be seen:

Windows File Protection could not be initiate a scan of protected system files.
The specific code is 0x000006ba [The RPC Server is unavailable.]

This happens if you run Sfc.exe in Safe mode. Or the Windows File Protection (WFP) is disabled in the registry.

Editor’s Note: If you’ve used nLite to build custom Windows installation package, you may have enabled the Disable SFC (File Protection) checkbox, which disables WFP and the System File Checker.

Enable the System File Checker

Use the following steps to re-enable WFP.

  1. Click Start, Run. Type Regedit.exe and press Enter.
  2. Navigate to the following branch: 
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
  3. Double-click SFCDisable and set its Value data to 0
  4. Exit the Registry Editor.
  5. Restart Windows.

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Ramesh Srinivasan is passionate about Microsoft technologies and he has been a consecutive ten-time recipient of the Microsoft Most Valuable Professional award in the Windows Shell/Desktop Experience category, from 2003 to 2012. He loves to troubleshoot and write about Windows. Ramesh founded Winhelponline.com in 2005.

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