Win XP Hangs after Splash Screen (PointSec Loaded)

[StruggleStreet]

I have a lenovo t400 laptop, that has Pointsec encryption loaded on it.

I ran the Think Vantage Lenovo update tool which downloaded and installed a number of updates (including drivers).

Now when I try to start the computer it hangs after the XP splash screen is displayed.

The screen simply goes black.

I have tried the various Safe Mode options (include VGA Mode, and start with last successful configuration) without luck. They also fail to boot.

The flow is:

Power On, PointSec Authentication Screen, Win XP Splash screen, then a black screen

I have successfully got into the system using UBCD4Win with the pointsec plugin loaded, this loads a WinPE type environment via a USB stick and allows me to access the C: drive unencrypted (as I have authenticated with Pointsec).

I'm now at the point of being unsure how to best to rollback the lenovo updates?
Should I just be poking around in c:\windows\system32 and moving any changes that happened as part of the update?

Any suggestions are welcome.

http://www.ubcd4win.com/contents.htm

[StruggleStreet]

Helpdesk is telling me that this version of PointSec (6.1.3) has issues with Service Pack 3.

Is there any chance that this ThinkVantage update installed SP3??

[Harryc]

No, ThinkVantage System Update does not install MS service packs. It does install patches though.

[StruggleStreet]

No, ThinkVantage System Update does not install MS service packs. It does install patches though.

ok thanks. I'll rule out uninstalling service pack 3 for the moment then.

Is there any easy way to rollback ThinkVantage System Updates when connecting to the system with a live boot disc?
Actually at this stage I'll be happy to hear of anyway to get these updates rollback, even finding a log file that tells me what was installed would be handy.

[StruggleStreet]

Is there any easy way to rollback ThinkVantage System Updates when connecting to the system with a live boot disc?
Actually at this stage I'll be happy to hear of anyway to get these updates rollback, even finding a log file that tells me what was installed would be handy.

Success

a. Manually rolled back the updates to c:\windows\system32 and c:\windows\system32\drivers
Original files were found in places like: c:\windows\system32\reinstallbackups\008\DriverFiles
b. Finally I had to roll back the registry updates that the updates did. UBCD4Win provides a tool to do this: Registry Restore Wizard. It basically just looks in the System Restore Directory c:\System Volume Information and lists all the available Restore Points (thankfully the Lenovo updates mark a restore point before they run). You can also do this manually using the following instructions:
http://hypography.com/forums/tutorials- ... d4win.html