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#11
If you decide to try Darik's, here you go.
Download
Download Darik's Boot and Nuke from SourceForge.net
Create a bootable dvd of the .iso using imgburn
The Official ImgBurn Website
Set Bios to boot to cd or dvd and Darik's will start.
Choose the DOD (Dept of Defense) Short option and let it run.
Will take a couple of hours.
When finished, take out disc, insert Win 7 and reboot.
If Win7 does not recognize the hard drive, you will need to reboot again and load the proper Toshiba drivers (download and put them on a CD from the Toshiba website) when promted to load 3rd party drivers.