No problem at all. My dv1000 came with all sorts of junque installed. It also came with 2 DVDs, one for apps and drivers, and the other for the OS, and a CD for the HP Quick-Play system.
I wiped and installed XP-Pro fresh. Then added the drivers I needed from the DVD and restored Quick-Play. No problems.
The biggest plus was getting rid of HP's own help stuff and getting back the standard XP version.