How to erase xp from my pc ? how long will it take ?

Question

I want no os on my computer for now

Answer 1

first of all go to your d drive right clik and format it remember this erases everything  

Answer 2

What you are looking to do is format your hard drive. I will link to an article that will show you how to format a hard drive in the sources.

Answer 3

Darik's Boot and Nuke ("DBAN") is a self-contained boot disk that securely wipes the hard disks of most computers. DBAN will automatically and completely delete the contents of any hard disk that it can detect, which makes it an appropriate utility for bulk or emergency data destruction.