I Installed on 3 XP Machines and they gave 3 different kind of problems: Slow shutdown , Not start at all, No desktop. The second on, wouldn’t get passed the manufacturers logo screen on start up. Just like mentioned here before. It really was bit for bit that the logo appeared. After about 20 minutes I coluld press F2 to get into BIOS. Than I left the BIOS without changing anything. From that moment on, this PC worked well and started as quick as with version 8.