How to Fix a Corupted Master Boot Record under Windows 7 and Vista

Windows partitions are still there and are unharmed.

Here is the quick and very easy way to fix the master boot record under Windows 7 or Vista. These instructions are from Microsoft's site but with my own added tips for a brainless recovery:

1. Put the Windows Vista or Windows 7 installation disc in the disc drive, and then start the computer (set to boot from CD in BIOS).
2. Press a key when you are prompted.
3. Select a language, a time, a currency, a keyboard or an input method, and then click Next.
4. Click Repair your computer (this is located in the lower left hand portion of the screen).
5. Click the operating system that you want to repair, and then click Next.
6. In the System Recovery Options dialog box, click Command Prompt.
7. Once in the command prompt, type exactly Bootrec.exe /FixMbr and then press ENTER. You will see "operation completed successfully."
8. Reboot and set BIOS to boot from the HDD again.