Fixing 0xc000000f

\WINDOWS\SYSTEM32\CONFIG\SYSTEM is missing or corrupt

Josh Kou
Published September 4, 2020, 5:26 pm

Method: Reboot a PC into "Last Known Good Configuration"

Rebooting a PC into “Last Known Good Configuration” mode forces a computer to use a saved version of the Windows registry that was in place the last time that computer successfully booted. This should fix all registry-related boot errors, assuming the last registry backup is available and is good condition.

  1. Restart the computer
  2. Wait for the BIOS to complete POST (the screen with manufacturer logo and/or system information)
  3. Quickly begin tapping F8 repeatedly, until the list of boot options is displayed
  4. Choose “Last Known Good Configuration (Advanced)”
  5. Press Enter and wait for the PC to boot.

Windows Advanced Boot options menu, with the “Last Known Good Configuration” option selected:

Windows Advanced Options Menu

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