This might occur if you have tried to install another operating system alongside Windows 7, such as Windows XP. While the above command does fix the MBR, and sometimes that is enough, there still might be an error with the system partition’s boot sector and Boot Configuration Data (BCD). Your Master Boot Record has been repaired. Bootrec.exe /FixMbr If successful, you should be greeted with the message The operation completed successfully. My Gateway NV79 running 64 bit Windows 7 won't boot and I've tried startup repair and the following steps below and it tells me that the total identified windows installations: 0.
