This option does not overwrite the existing partition table. The /FixMbr option writes a Windows 7 or Windows Vista-compatible MBR to the system partition. You can Try the following combination: Bootrec.exe /FixMbr (This works on all versions of Vista and Windows 7 Only) Use the option that is appropriate for your situation.

The Bootrec.exe tool supports the following options.

Type Bootrec.exe, and then press ENTER.

In the System Recovery Options dialog box, click Command Prompt.

Click the operating system that you want to repair, and then click Next.

Boot Windows 7 installation disc in the disc drive, and then start the computer.

Here are few tips you can try if the Windows 7 Install/Repair disk doesn’t find the problem and won’t able to fix the boot issue for you. Yes there are ways you can run Mac inside a VMWare, however often application crashes inside VM which makes it almost impossible to make a use out of it. I happen to encounter this boot issue today when I try to install the latest Hackintosh on my laptop.

If you are the kind person have different operating systems natively installed on one single machine tune it right and manage it to able to dual boot, triple boot or even quad boot will be a complicated task. You don’t get into serious problem often, unless you are the kind person who wants to risk you machine and play around with different OSs. Over the years Microsoft has improved their system recovery option for Windows Operating System.

Windows 7 boot repair