What does that have to do with anything?

He asked how to reformat. Note, he asked how to reformat.

And... you can format a hard drive regardless of what is on it. Windows has nothing to do with it.

Also, nothing formats a hard drive for you. Either you have a windows CD in that has it in the boot process and you click next for it, or you enter dos mode and use a format executable to do it.

What is it they say about silence being golden?