My computer keeps crashing and it's running extremely slow. When I ran task manager (I can't run it anymore because it just crashes) it always says svchost is using up 100 percent of my cpu, and sometimes windows says a critical process was ended and someone forced my comptuer to shut down. I searched this and some sites said this is because of the msblaster virus, but I couldn't find msblast.exe or msblaster.exe anywhere on my computer and there was never a process like that running on my computer. I can't run any programs except mozilla firefox, and a lot of the times when I shut down my computer it says a process called "MPWnd_hooker.exe" is running and has to be ended. Is that file the virus? I don't know what it is because I searched the internet and I only found a message boards and some french sites. I couldn't find anything about this on symantec.com, mcafee.com or any other security websites. Does anyone know why my computer crashes and is so slow, and is it because of the MPWnd_hooker.exe?