WinXP hangs at 'shutting down' screen

Hi, I am a long time reader, first time poster. Usually I can solve most of my problems by reading other threads, but recently my system has begun freezing every time I try to shut down or restart on the screen that says " windows is shutting down." I had run a few anti-malware programs between the time it was running fine and the time is first froze. The only program that I ran that I had never used before was CCleanup, so I think that might be part of the problem. Here are my specs:

Windows XP Home SP2
MSI MS-6507E Motherboard
Pentium 4 2.27GB
768 MB DDR RAM
NVIDIA GeForce 6200 (128MB)

If you need any more info, please let me know. Thank you in advance for helping me with this annoyance.

 

I still have the same problem. Another thing I wanted to add was that I saw a recommendation to update nvidia drivers when having this problem, so I have already tried that. Thanks for your help. Any other suggestions?

 

I am still having the same problem. FYI I set my waittokillservicetimeout to 1500

 

See how you go over here.

 

I have been unable to use your information because my pc now freezes when I boot up. It asks me if i want to start up in safe mode since i doesnt not shut down properly. when i choose safe mode, it freezes with a black screen full of "multi(0)disk....." lines. when i try to boot in normal mode, the screen turns completely black after the windows loading screen. Is this a hardware problem? or do you have any pointers for me to fix this? Thank you.

 

well, it booted up in safe mode this time after about 4 failed attempts. It asks me if i want a system restore, so I am wondering if that is a good idea at this point, because last week I was having no probems at all. I will still get to the bios specs for you. Is there a way to get into the bios from windows, or only during startup? And do you recommend system restore?

 

okay, system temperature is 35C = 95F. CPU temp is 46/114. Both temps are gradually increasing. How long does my pc need to be running to get an accurate reading? The fan voltage ranges from 8 to 11V. Is this the correct information?

 

What does this do? Mine's at 20000 and less than 2000 seems like a big change.

How do you disable just one sound? I haven't gotten some of these sounds in a long time.
abri

 

stupid question, but how long are you actually waiting for your computer to shutdown, or boot into safemode. if there is a problem, it may seem that it's taking a long time, but may still boot up (or shut down)

 

sorry for the delay. I cant find the main rail voltages in my BIOS, but the CPU temp is 132F and the System temp is 118F. Can you help me find voltages?