I have a Hp Pavilion computer. It has a partition on it for recovery. After I brought it, I made four more partitions for music, files etc. The computer has been acting up and I want to redo it. When i try to recover it, it won't do it. It says that I can't because I made partitions on it. I have a friend's copy of the Windows XP Home. When i load it, it says that the only place it can install Windows is in H:Recovery partition. How do I reformat my hard drive so I can reload windows and also can I use my friend's disk to load it but use my verication number from my computer.