Hello again, Nuhi, I did some more experiments. I want to share my findings, because maybe that will help someone else, or maybe will connect to someting other. I tried with not touching the services, or not integrating any hotfixes or drivers. Still no good result. But I have observed two details: - The setup CD's I create work OK in Virtual PC etc. They fail at my test system consisting an Athlon X2 cpu, nForce 590 board etc. Could that be related to my spesific hardware? - I tried using nLite to create another administrator account on setup, with another name. I noticed that in the failed installations, the folders for that account is not created. Additional to the Admin and Guest users allready built-in, I setup nlite to create a user named DHW, beloning to Admins group. After the XP installations, I find no trace of such an user on the hard drive. What may cause such random failure in user creation, do you have any idea for me? Next thing I will try is to use a pure XP SP2 CD for new CD creation. So far I used a XP SP2 CD with all the updates allready slipstreamed. Maybe that is a problem, we will see. Many thanks, LP