the BIOS loads the Bootloader to tell it what to boot. GRUB replaced the Windows Boot Loader.

Edit: This is better:

Quote:Repairing The Windows 7 Installation

1. Insert the Windows 7 DVD and restart your computer
2. Boot from the DVD.
3. Choose your language and click Next.
4. Click Repair Your Computer and then select the operating system you want to repair.


If that doesn't fix it:

1. Insert the Windows 7 DVD and restart your computer
2. Boot from the DVD.
3. Choose your language and click Next.
4. Click Repair Your Computer and then select Command Prompt and try the following commands (a single command might work, or you may need to use multiple):

bootrec /fixMBR
bootrec /fixBoot
bootrec /rebuildBCD
bootrec /scanOS

Note: there is a space before the /

Source: http://social.technet.microsoft.com/Foru...220fa41d99

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And for the love of god don't touch the CMOS.

(This post was last modified: 10/05/2010 03:09 AM by S7*.)