Computer freezes, will not shut down, Generic Host Process error

I have been have something problems with my windows XP computer. I am unable to run some of my programs, its freezes and most of the time I can't even turn it off my computer no matter how many times I keep click shut down so I am force to turn it off the wrong way and unplug it. I aslo so get the Generic Host Process for win32 error.

I've tried using both Super AntiSpyware & Spyware terminator but their not getting the job done. When they both finish the complete scans they ask me to reboot but, most of the time the computer won't reboot and even when it does this blue screen comes up and tells me it shutdowns or something and when I turn it back on its like nothing happen and I still have adware, trojan, etc.

 

What's on the blue screen?