Hello,
There are a couple of things to look into -
1.  Check the following KB to see if it applies to you -
819634 You May Experience Performance Issues After You Install the 811493
http://support.microsoft.com/?id=819634
2.  Run MSCONFIG and boot your computer to see if the boot is still slow -
A) Go to Start\Run and type
MSCONFIG <OK>
B) In MSConfig, choose "Selective Startup"
C) Remove all check boxes and click "OK" and "Yes" to reboot.
Then test our issue.
D) If you don't see the problem at this point, check all except "System
Services" and "Startup Items", click "OK" and "Yes".
Reboot then test our issue.
E) If you don't see the problem at this point, check all except "System
Services", click "OK" and "Yes".
Reboot and then test our issue.
F) If the problem returns, it is due to a Startup Item. If not, it is a
Service.
For Services:
G) Click the Services tab and check the box for "Hide all Microsoft
Services."
H) Enable SOME of the disabled items, click "OK" and "Yes".
Reboot, then test our issue.
For Startup Items:
I) Click the Startup tab and enable SOME of the disabled items, click "OK"
and "Yes".
Reboot, then test our issue.
J) Repeat until you track down the offending component.
Best regards,
--
Shain Wray
Microsoft PSS Security Team
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