To Solve BCD Error problem in Windows 7 or Windows vista

bcdedit /export (Your_Windows_Partition_Drive):BCD_Backup
(Your_Windows_Partition_Drive):
cd boot
attrib bcd -s -h -r
ren (Your_Windows_Partition_Drive):bootbcd bcd.old
bootrec /RebuildBCD
bootrec /FixMBR
bootrec /fixboot

source

how to repair windows 7