Hi all. My parents recently purchased a new hp pc which has started to run somewhat slowly. I have decided to reinstall the os. Unfortuantly the system did not come with the vista install disk. However, i do have a vista upgrade disk that came with my acer laptop. I have installed that copy of vista but i have found a program that tells you the serial number of your vista copy installed.
Therefore would it be possible to install a clean copy of vista from my oem upgrade disk with the serial number from by copy of vista currently installed on my desktop.
Normally, HP has a recovery partition on the HD. Do you have an option like F11 when booting the PC? If yes, the utility will be launched and you should be able to reinstall Windows like it was from factory.