[Rocket]

Basically that's it. Typically I boot from a windows startup disk, which makes a RAM drive (acts like a hard drive, but in RAM). The ramdrive has the tools you'll need, and the command is simply "format c:"

I think you can also boot directly to DOS and run it from there. You'll have to know where the format.exe program is, which I would suggest finding in windows file explorer first. Then the command would be something like this:

c:\[specific_directory]\format c:

Hope this helps.