A CD-ROM/DVD-ROM máš?
http://www.ultimatebootcd.com
Hard Disk Wiping Tools
Darik's Boot and Nuke 1.0.7
CopyWipe 1.14
Active@ KillDisk Free Edition 4.1
PC INSPECTOR e-maxx 0.95
HDDErase
//edit: jinak z USB flashdisku namátkou třeba Portable WipeDisk 1.0.3.0