Lol that's wired......
To crash your harddisk...
1) Install Windows... or
1) Use Disk defragmenter .. and in the middle of it reset your system... Do It 20 times or
2) Remove all anti-virus and then goto all the worst sites in the world that screw your OS and your HDD .....
To recover....
Boot in DOS mode using Bootable diskette
Type format c:\
Press enter
then install the OS using a bootable CD