X:\Sources>bcdedit /export c:\bcdbackup The operation completed successfully. X:\Sources>attrib c:\boot\bcd -h -r -s X:\Sources>ren c:\boot\bcd bcd.old X:\Sources>bootrec /rebuildbcd Scanning all disks for Windows installations. Please wait, since this may take a while... Successfully scanned Windows installations. Total identified Windows installations: 1 [1] D:\Windows Add installation to boot list? Yes(Y)/No(N)/All(A):Y The operation completed successfully.