Server locking up and needing to reboot

I have a Windows 2000 Server that is freezing up regularly.  The freezes occur and all windows close out (as if explorer crashed) except that the mouse is movable.  The system does not respond to control alt delete and requires a reboot.

The system will behave normally throughout the week and probably once a week or so (at different times on different days) it will do this.  This last time the computers also behaved the same way after the server did it's usual crash.
wjb313Asked:
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Benji_Commented:
Have you tried getting the latest updates, and how long has this been happening?
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wjb313Author Commented:
It has all the Windows Updates, it has been going on (off and on) for approximately 4 months.
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Benji_Commented:
is there any software on your server that could be using a high load, have task manager open all the time and when it crashes it should be froze on what the load was,  

is this a domain controller or just a data storange server.

also could you post specs?
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Darius GhassemCommented:
Have you added any software like AV to the system?
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wjb313Author Commented:
Windows 2000 Server SP4
HP ProLiant ML350 G4
Intel Xeon 3.2
3.4 GB RAM

It is the domain controller, terminal server, and DHCP controller.  The AntiVirus is Panda Corporate 8.0 (which at this point is my number one suspect for causing the crashing).
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Darius GhassemCommented:
I would remove the Panada AV to see if this fixes your issue.
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wjb313Author Commented:
We will definitely try uninstalling Panda and see what happens.  That was my initial theory as well.
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Darius GhassemCommented:
How is everything going?
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wjb313Author Commented:
So far, so good. We've gone through a complete uninstall of Panda from this server. As the issue was only coming up once every week or so, we're now in the waiting game to see what happens. We'll update here once we know more.
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Darius GhassemCommented:
So, any update?
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wjb313Author Commented:
We're entering week three without any issues. Because the client has been hazy about the actual frequency, it's hard to say if it's resolved but I'm pretty encouraged. I'll update as soon as we've got this settled - probably next week.
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wjb313Author Commented:
Got through until this past Sunday then the whole system came crashing down again. Users trying to log in were greeted with 'Insufficient system resources. . . ' errors. Clearly we have a memory leak but no idea where it's coming from at this point (though I still think Panda has a hand in it). At this point, we see MFT corruption and we're recommending the client move forward with a reinstall of the OS. Thanks for your help, though!
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wjb313Author Commented:
OS was reinstalled to resolve this issue. This question can be closed.
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