PsiMoon314 is wrong packard bell can be activated with correct disk you need oem bios files for packard bell, here are a few links to look through. http://www.msfn.org/board/OEMScan-Automate...amp;hl=oem+bios http://www.msfn.org/board/Building-a-Pre-a...amp;hl=oem+bios http://forums.mydigitallife.info/index.php http://keznews.com/forum/viewtopic.php?t=7008 this says for vista but lets you know how SLP works. have a look here for more info http://forums.mydigitallife.info/forumdisplay.php?f=5, P.S. you will have info in bios i,e, SLP string you are just using wrong disk