hi, my Win7 Pro 64 bit computer is freezing up on me after a clean install and downloading all the Window updates. did a scan disk on my hard drive. clean bill of health. even shutting Window down hangs. I can't open any files or any other hard drives . I just get a message that that partition is not responding. Then, when I do a ctrl-alt-delete to bring up my task manager, window explorer is not responding. This happens if I let my computer idle for about an 1 hour. My computer have the same hardware as before, no upgrades of hardware or software. I know Windows sometimes have a buggy upgrades and you need to uninstall the problematic upgrade to fix the problem. I don't if this is what's happening and if it is ,which upgrade to uninstall because I did a complete upgrade after my clean reinstall of the O/S.