bootrec /fixmbr bootrec /fixboot bootrec /scanos bootrec /rebuildbcd
Sometimes bootrec /rebuildbcd fails with "Element not found." Use BCDEdit: windows server 2012 r2 boot repair
At the Command Prompt, type:
finds no installations, you may need to manually export and recreate the BCD: bcdedit /export C:\BCD_Backup followed by cd /d c:\boot Remove attributes from the BCD file: attrib bcd -s -h -r Rename the old BCD: ren c:\boot\bcd bcd.old bootrec /rebuildbcd Phase 4: Running System File and Disk Checks type: finds no installations
If it fails, manually assign a letter to the system partition. windows server 2012 r2 boot repair