I have one old computer with WinXP. It is very old and slow. I would like to format disc but I cannot because there is Windows. Of course, I would like to keep bios setting (because I cannot find out any characteristic of this computer) and I cannot install new one.
I need step by step the simplest instructions what to do.
Thanks Marcuzzo but I would like to clean all data with format disc (format C:/) and then install fresh Windows.
I understand what do you mean but I am follow exact steps for this computer like on your video but when installing XP is over I am find lot of old files there on C disc (like old My Documents, etc.). It's looking windows CD didn't format disc totally. I was surprised why format disc is not completed and I cannot find good answer on this question. This is reason why I would like to format disc via DOS and then install fresh Windows.