1. I had the same issue a few days back, keep AMD drivers (both) and you won't have the unknown device anymore... As you maybe know, XP x64 was originally for AMD 64 bit processors. Somehow Intel and AMD are bound in XP x64. 3. I never had this issue with nLite 1.4 beta, haven't tried 1.3 stable though. Which version did you use? Also, I it's very important to use a clean source, untouched, but I'm sure you have done this already. type control userpasswords2 in run see if your account is Adminstrator or if theres more after Administrator Make sure it's Administrator only...