Windows 7: won't let me reformat

[xDownSetx]

I don't know if you've already fixed the issue or not, but when you install windows it automatically installs the boot loader on the hard drive set as the 1st boot device in the bios.

You need to install the boot loader on the raptor then set it as the 1st boot device. It's almost impossible to erase the mbr on a HD but you can format the hard drive once windows is no longer booting from it.

Having a loader written to the mbr is just something you live with, no big deal really. 7 just wont let you format it because windows will no longer boot.

[General_J0k3r]

if it's just a 500gb drive get the bootloader onto the raptor, backup ur files from the 500gb drive and format it completely including partition table and such.