I'm trying to reformat my hard drive (only have one) and it won't let me b/c the os is on the hard drive. I tried creating a start-up disk with Windows XP so that I could boot to DOS and format from a ...

The solution apparently is to either write zeroes and low-level format the drive or reset the MBR.<BR><BR>Problem is, how do I do this? The Western Digital utility in Windows can't write zeroes to the ...