Press D to delete the selected partition. Since you won't be installing Windows, you don't need to worry about having a valid copy of Windows or a product key. If I did not take the risk and learn how to format windows xp, I would not be where I am today.
Since you're only uninstalling Windows XP, you don't need to worry about reading it.You will be shown a list of all the partitions on your computer. You can format a computer's drive from within the Windows interface except for the system drive. We can not format c drive from my computer so in this case we have to boot from windows xp cd and format c drive. This will delete all of the data on this partition, so make sure you have everything you want saved first.
Even though I know how to format a computer, it took me a few goes to be comfortable with the process.However now days most computer users will try to repair their computer themselves and even go to the extent of learning how to format windows xp and then doing it themselves. Is there any way to format the drive or otherwise completely wipe off everything on. Learning how to format windows xp used to be a task that was reserved for professional IT guys only. Feel free to borrow a friend's disc or flash drive if you'd like to try this method. I have only one partition called C, that drive holds the operating system and all the documents.