Noted at http://forums.cnet.com/7726-6132_102-5098912.html?tag=posts;msg5099421
I would run RKILL and see if it finds a nasty. There are a few pests that survive such a restore. I found RKILL to be a quick detector of those.
My system is windows 7 core i7 6 gig of ram Windows Home Premium and I have just reinstall my system using the recovery disk copy from the system and it is an HP model. Everytime after restart the system seem to hang but what puzzle me is that the wallpaper can change every 10 min as set by me, but when I click on any icon or even the start menu it also don't work until I ctrl+alt+del and when the start Task Manger come up and I click on it and when it open I just close it and everything works find. So can sime one help me to resolve this problem and thanks.