Hey guys, Ok, so.. My Windows 7 suddenly started acting very strange. 1. Sometimes the desktop doesnt refresh itself anymore. Example: When I copy a file from folder A to folder B, the file is in folder B but it still shows up in folder A but not B. only after a manual refresh it will be visible in folder B. 2. Some programs, when I start them, don't show up. They are running but I can't see them on my desktop, not even after a manual refresh. Example: Spybot S&D when started, shows up in my process list, but I can't see it on my desktop. This also affects VLC media player. 3. Sometimes Windows Media Player just gets stuck when I open a song (I have to close it trough task manager then). It then will be stuck and not visible if launched again untill I restart my PC. 4. If any of this happens, when I open up "My Computer" it doesnt load the details of my hard drives (how much space left etc) it just keeps loading, and when I open a hard drive it just doesn't load the files on it (I can't see them untill I restart my PC.) 5. When I shut down my PC, it keeps hanging on "Logging off" 90% of the time, 5% of the time it gets to "Shutting down" and windows will be closed, but the machine keeps running. The other 5% of the time it shut down normaly. So 95% of the time I have to hold the button to shut it down. This problems all started happening all of a sudden, I didn't install any new software or anything, my drivers are up to date but I doubt it would be a driver problem as it started a while after I last updated my drivers. I scanned for viruses etc and it came out clean.. I never had any reall problems with Windows 7 untill now, I also installed Windows 7 like 6 times over, after a format. My hardware seems to be fine, the tests show no errors.. The only "problem" I sometimes have is when I start up my pc it says "Failed to overclock, press F1 to continue. I've have that problem since I got this new motherboard and processor and RAM tho, and it never caused problems. It seems to be fine in safe mode tho. Not really sure tho 'cause it always randomly happens. Lately it happens alot tho. I was thinking it would be a Microsoft Update that is in conflict with some software or something? But to be honest I really don't know.. I don't know how to find out either. My hardware.. CPU: Intel i5 2500 Mobo: Asus P8P67 LE RAM: 4GB DDR3 1333MHz CORSAIR Mainstream Enthusiast GPU: ATI Radeon HD 5770 I really, really hope, that someone can help me with this 'cause it's starting to get really annoying. Thanks in advance guys.