Starting about an hour after I started my desktop on the 17th I started getting the following error when ever I tried to open an app that wasn't already running. "The application was unable to start correctly (0xc0000005). Click OK to close the application." I have been all over the web trying different fixes and nothing has worked so far. First thing I did was restore a Macrium backup that was before the last Windows update, 5/09. Windows is activated and legal. After a few minutes the errors start again. Have done this 4 times with different drives. Ran memtest for 10 hours with O errors. Ran 2 antivirus scans that found squat. Re seated memory and unplugged and replugged all motherboard connections. Last thing I did was go in to msconfig and start with all startups but antivirus loading and I can do some things like Outlook and Chrome but most applications will not load. Last night I was able to get Steam to load and play DOOM for an hour with no problem. Os used winload not xOsload. Anybody have any ideas?