Laptop stuck at "Logging Off..." after Win7 SP1 install

After installing SP1, running Win 7 Home Premium on Dell XPS M1530, it hangs at "Logging off..."  even from Safe Mode.  Ran CCleaner, MyDefrag 4.31. Still, no joy! Must turn off manually.  Recovery disk D: reports with a full warning.
How to resolve/next steps?
Berry MetzgerLean process improvement consultantAsked:
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Rob MinersCommented:
A couple of things to try

Turn off System Restore on the D: Drive Restore Partition.

1.      Press the WinKey + Pause
2.      Select Advanced system settings, System Protection       
3.      Untick the radio box under Available Disks for D:

Try the steps below using msconfig to see if its a Service or Program that is interfering. If it works Ok, re-enable 1 or 2 items at a time, keep testing until you find out what is causing the problem.

Press the WinKey + r run msconfig

Click the Services tab then tick Hide all Microsoft Services, disable all Services except for Antivirus.

Click the Startup tab and disable all references in Startup Item except for Antivirus. Click Ok and click again to restart your Computer and try to reproduce the problem.

Just to be on the safe side download Malwarebytes Anti-Malware, install it and update it and scan the PC.  Keep us posted as to your progress :)

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Rob MinersCommented:
To test to see if the Antivirus is causing problems, you can remove the Ethernet cable or turn off the Modem for awhile, if you use wireless. Most Antivirus products these days can be temporarily disabled long enough to test by using their software.

I assume that, this is the problem of windows updates.

But please troubleshoot your laptop step by step.

1. Do one thing, delete all temporary files & unwanted data.
2. Whenever you are logging off your laptop, at that time please open the task manager &
check the cpu & memory usage.

3. Remove latest windows updates.

Tushar Kaskhedikar
Berry MetzgerLean process improvement consultantAuthor Commented:
Bingo!  Closing down all non-MS services and start up programs fixed the problem of the hang at "Logging off..."
Will continue to chase down the culprit one-by-one.
Thanks for the thorough response that worked for me.
Rob MinersCommented:
Your welcome :)
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