The problem seems to be with updates KB2633880, KB2518864 and KB2572073 on Windows XP. Some users report that the three updates download and install successfully, but then Windows Update insists on downloading them again repeatedly.
The updates were pushed out this month as part of Microsoft's regular update cycle. Microsoft's help desk service confirmed that it was getting plenty of calls about the issue and was waiting on a proper fix.
Users are being directed to a Microsoft Support page that details what to do when "Windows Update or Microsoft Update repeatedly offers the same update."
The page is located at: http://support.microsoft.com/kb/910339
Written by: James Delahunty @ 23 May 2012 19:03