Windows XP crashes at Shutdown (Error Code 0x000000C2)

I'm having problem with a new Windows XP computer crashing when I shut it down. It doesn't crash every time it shuts down but it does very often. When it crashes, this happens almost inmediately after pressing Shut Down (Start > Turn off computer > Shut Down).

At first this would have Windows XP restart automatically but when I disabled automatic restart on system failure I receive a Blue Screen instead. A typical log entry in System Log would be this one:

Event Type:      Error
Event Source:      System Error
Event Category:      (102)
Event ID:      1003
Date:            31/01/2008
Time:            02:26:58 p.m.
User:            N/A
Computer:      ABAL
Error code 000000c2, parameter1 00000007, parameter2 00000cd4, parameter3 142b0403, parameter4 e4f34df0.

For more information, see Help and Support Center at
0000: 53 79 73 74 65 6d 20 45   System E
0008: 72 72 6f 72 20 20 45 72   rror  Er
0010: 72 6f 72 20 63 6f 64 65   ror code
0018: 20 30 30 30 30 30 30 63    000000c
0020: 32 20 20 50 61 72 61 6d   2  Param
0028: 65 74 65 72 73 20 30 30   eters 00
0030: 30 30 30 30 30 37 2c 20   000007,
0038: 30 30 30 30 30 63 64 34   00000cd4
0040: 2c 20 31 34 32 62 30 34   , 142b04
0048: 30 33 2c 20 65 34 66 33   03, e4f3
0050: 34 64 66 30               4df0    

I have also opened the minidump files with Microsoft Debugging Tools for Windows, and all of them say: Probably caused by : win32k.sys

I have posted last 6 minidumps at

I would like to know what I would need to do now. Windows XP has already been properly updated with Windows Update.
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This is a good place to start troubleshooting:
See if disabling the ATI Hotkey Poller (ati2evxx.exe) service solves the problem. See the link below for info on this service.

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cesaropAuthor Commented:
Thank you very much. Please be patient as this is going to take sometime because the crashes have been happening occasionally, i mean, not every time the PC is being shut down, so a  good shut down does not necessarily means that the problem has been fixed.

I had already checked the site recommended by 2PiFL.

I will try the other suggestions one at a time. If after one week the problems doesn't reappear, I will accept the corresponding solution.

For the moment I have started with pad1963 and have disabled the ATI Hotkey Poller service and tried shutting down twice. So far so good. The computer is being used by its owner and he will inform me in case of any crash.

A question for pad1963 and for orangutang: why have you given those suggestions? I mean, what makes you think that that could fix the problem?
Honestly, I don't really know why the the User Profile Hive Cleanup Service would help other than it can be used to workaround certain shutdown problems but I don't know if it can help with anything that serious.
See the link below for the same crash. The process isn't always ati2evxx.exe, but all your crashes are exactly the same.

BugCheck C2, {7, cd4, 142b062b, e4f33968}
Probably caused by : win32k.sys ( win32k!HeavyFreePool+bb )
PROCESS_NAME:  ati2evxx.exe

BugCheck C2, {7, cd4, 142b0604, e46d9528}
Probably caused by : win32k.sys ( win32k!HeavyFreePool+bb )
PROCESS_NAME:  csrss.exe
cesaropAuthor Commented:
Thank you very much for your suggestion. It fixed the problem.
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Windows XP

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