dos unallocated hard drive ibm thinkpad

Question

I zero'd out my hard drive with something called kill disk. It unfortunately doesn't have a format option. So now my hard drive is basically 20GB of unallocated space. When I boot from my usb (which has kill disk on it) and then I exit kill disk, I see a dos prompt.

This is freedos, and has a limited set of executables. However, I can load executables onto my usb and then they will be available for me to use on the freedos prompt.

Question: What executable(s) should I put on this usb so that I can run them and eventually format my hard drive so it is usable again?

Thanks.

Answer 1

Can you boot a CD on the system? Try gParted, it's very good. i'm sure you can boot it from USB as well.

Does that help you in your situation?

Answer 2

If you're planing on installing another OS, most OS disks have built in disk management, including partitioning and formating.

Unless you just want to set up a partition and leave it as is, I'd simply use the OS disk.