I've got to reinstall Windows XP Professional on an HP desktop computer with the original serial number label sticked on the back of the case.
I had to reformat it because somebody had the lovely idea to install Windows XP on it with a FAT32 filesystem, so it was full of viruses including rootkits, and there was some sort of file system error that made one infected file not erasable even by attaching the hard drive to another pc nor by analyzing it from any sort of live utility bootable cd.
Now the problem is that I don't have any Windows XP OEM HP cd, and if I try to install XP from a vanilla XP original cd it won't take the HP serial. I also tried the msdn version of the cd but I've got the same problem.
Is there any workaround to this? Can I make an HP-compatible OEM cd from a vanilla cd using by some sort of tool or by tweaking some config files?
And what if I install xp using a volume license key, then I do some tweaks to substitute the serial by putting in the original HP one.
Is that possible? Is that regular?