Windows Server 2012 R2 Boot Repair May 2026

bootrec /scanos Scans all disks for Windows installations and displays the results.

bootrec /rebuildbcd Scans for Windows installations and lets you add them to the BCD store. windows server 2012 r2 boot repair

If the BCD store is beyond repair, you must rename the old BCD and create a new one: bootrec /scanos Scans all disks for Windows installations

When you run /rebuildbcd , it will typically find one installation (e.g., "Windows Server 2012 R2"). Type Y (Yes) to add it to the boot list. Type Y (Yes) to add it to the boot list

bcdedit /export C:\BCD_Backup ren c:\boot\bcd bcd.old bootrec /rebuildbcd After this, exit the command prompt and restart the server. Sometimes boot failure stems from core OS file corruption, not just bootloader issues. You can run SFC and DISM from the recovery environment.

bootrec /fixboot Writes a new boot sector to the system partition.