Sony Vaio Laptop VGN-CR120E Came preloaded with Vista Home premium. After a year Vista was uninstalled (Complete HD format) and XP pro 64 bit installed. All necessary drivers were obtained from Sony and the laptop works great except that XP will not shutdown or restart. It hangs up at the "WINDOWS IS SHUTTING DOWN" screen. All posted google results to this problem have been tried and I have tried a bunch that were posted here. Has anyone had the same trouble with a similar machine and found the answer to it. Right now I have to unplug from the wall and disconnect the battery to shut it down completely

Run msconfig and deselect everything in the Startup tab. Then try a shutdown. If it shutsdown ok, try and isolate it to one of the applications that you deselected.

Two different things I know of that can cause this....both are pains to determine. Either software is not shutting down properly as aegis was pointing out or there is a piece of hardware that is not releasing the stored memory cache and is causing the lock up. UPH Clean from M$ sometimes clears up the memory problem although it was not created to repair this type of problem...it is now automatically installed in vista. I install it on all computers that I repair now. You can checkout the event viewer and try to see if there is an error noted in the log files. It may point you into the right direction...or fall back to the old process of illimination by using device manager to disable the hardware one piece at a time and see which one is causing the problem! Definition of a Liberal: He has never had to fight for his Freedom He is only good at enjoying it! "IF YOU DON'T STAND BEHIND OUR TROOPS, PLEASE, FEEL FREE TO STAND IN FRONT OF THEM

http://support.microsoft.com/defaul... Resources to Help Troubleshoot Shutdown Problems in Windows XP