XP Always asks to install updates at shutdown

I have Windows XP Service Pack 3.  Everytime I shut down my computer, Windows tries to install updates. I don't receive any error messages, but it has been doing this for weeks.
I've run Malwarebytes, CCleaner, TDSSKiller, and Combofix. I've gone to www.windowsupdate.microsoft.com and tried to install all relevant updates from there. At that site, it tries to install: Security Update for Microsoft .NET Framework 2.0 SP2 on Windows Server 2003 and Windows XP x86 (KB2572073). It says the update was successful, but when I try to check again for updates, that one keeps coming back up as being an update I need.
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Neil RussellTechnical Development LeadCommented:
From Microsoft....

1. Download .Net Cleanup Utility from the link below:
Look for (http://blogs.msdn.com/cfs-file.ashx/__key/CommunityServer-Components-PostAttachments/00-08-90-44-93/dotnetfx_5F00_cleanup_5F00_tool.zip)

2. Download and install the .Net Framework 3.5 SP1 by clicking the link below (this will also install .Net Framework 2.0 SP2 and 3.0 SP2):


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maybe the updates  were not installed?  check the settings -  installing and downloading are 2 different things
see the post of pip22 :  http://www.geekstogo.com/forum/topic/188572-windows-xp-prompts-to-install-updates-on-shutdown/
Neil RussellTechnical Development LeadCommented:

This is a known issue with .net updates. They DO report as installed but dont install correctly. Therefore a never ending loop of trying to install.
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neils - you don't have to answer me - but tx for the info
lyonskiAuthor Commented:
I did as Neilsr suggested - uninstalling .Net Framework and reinstalling.  I had to keep checking for and installing updates - there must have been 20 different ones - they didn't show up all at once (of course) but required that I keep going back to Windows Update to check for more.  Took me most of a day, but the issue of updates needing to be installed upon shut down seems to be fixed.
Thank you!
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Windows XP

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