Problems with Services.exe crashing

Simply put, Services.exe crashes at (approx.) 1 hour intervals. I get a warning that the computer will shut down in 60 seconds. Then the computer reboots. At least I get some time to work

Several possiblities seem likely to me as to the cause -
I installed new bios
I had my computer removed from a domain - I don't think this was real clean.
I replaced my video and sound card drivers

I have reverted to my original drivers
Looking at the application event logs, I see two suspicious application errors. (notice that esent.dll seems to be the problem.)
**************************************
Event Type: Error
Event Source: Application Error
Event Category: (100)
Event ID: 1000
Date: 10/18/2005
Time: 4:50:28 PM
User: N/A

Description:
Faulting application services.exe, version 5.1.2600.2180, faulting module esent.dll, version 5.1.2600.2180, fault address 0x00023352.
**************************************
Event Type: Error
Event Source: Userenv
Event Category: None
Event ID: 1085
Date: 10/18/2005
Time: 4:54:13 PM
User: NT AUTHORITY\SYSTEM

The Group Policy client-side extension Security failed to execute. Please look for any errors reported earlier by that extension.

*************************************
Computer info follows:

Computer:
Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 2
Internet Explorer 6.0.2900.2180
Computer Name WILK204-PC6 (wilk204-pc6.science.oregonstate.edu)
User Name knochej
Logon Domain WILK204-PC6

Motherboard:
CPU Type Mobile Intel Pentium 4A, 2633 MHz (5.75 x 458)
Motherboard Name Dell Computer Corporation Inspiron 5150
Motherboard Chipset Intel Montara-PM i852PM
System Memory 512 MB (DDR SDRAM)
BIOS Type Phoenix (12/10/04)

Display:
Video Adapter MOBILITY RADEON 9000 (64 MB)
Video Adapter MOBILITY RADEON 9000 (64 MB)
3D Accelerator ATI M9
Monitor Digital Flat Panel (1600x1200)

Multimedia:
Audio Adapter Intel 82801DB(M) ICH4(-M) - AC'97 Audio Controller [A-1]

Storage:
Disk Drive IC25N040ATCS04-0 (40 GB, 4200 RPM, Ultra-ATA/100)
Optical Drive SAMSUNG CDRW/DVD SN-324B (DVD:8x, CD:24x/10x/24x DVD-ROM/CD-RW)

Partitions:
C: (NTFS) 38115 MB (19025 MB free)

Input:
Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse HID-compliant mouse
Mouse Synaptics PS/2 Port Pointing Device

Network:
Primary IP Address 192.168.168.22
Primary MAC Address 00-40-05-C4-AF-62
Network Adapter Broadcom 440x 10/100 Integrated Controller
Network Adapter D-Link AirPlus DWL-650+ Wireless Cardbus Adapter (192.168.168.22)
Modem Conexant D480 MDC V.92 Modem

Peripherals:
USB Device USB Human Interface Device

 

From the info you provided....

This is a computer that is on a DOMAIN.

This computer starts up as normal. But within 1 hour, it will crash? (sounds like a bad service)


Quick question, since you mentioned domains, which opens up a huge topic, on whether your network (entirely) is secure (and malware free).

What happens when you turn off ALL startup items within msconfig.

 

Wait, you get a warning that the computer will shut down in 60 seconds, this sounds like a virus.

I'd recommend following:

http://forums.majorgeeks.com/showthread.php?t=35407

 

I think it is a domain problem.. although I am not sure. There is a possiblity that my computer is compromised. Long story, but I was off the network for about six month. In that time a new (and not experienced admin) took over. So I walk in and plug my laptop in.... And what happens??? My computer is updated up the wazoo. I lose all my permissions, settings (carefully worked out so I can run the software I need to run), and accounts that I have been using. Ouch. Probably 30 to 40 hours of work. Not to mention all my restore points are gone, etc..... Well, I immediately got a friend of mine who has admin rights over a smaller group to remove me from the larger domain, and added as an admin in our group. Then I had to install some newer software and update a bunch of stuff, so I was never quite sure what the problem was, but I know that I don't want to have to redo all my work.
What happens when you turn off ALL startup items within msconfig.

In any case, I wil try these other methods, but I can never tell when my computer is going to crash. Sometimes it lasts for hours, sometimes for minutes. Argghhhh. So I might have to wait for a while to know if any of these solutions work.

Thanks for the help, I will let you know if your solutions work.