http://msmvps.com/blogs/mikehall/archive/2008/05/15/windows-update-code-57a.aspxIf you have attempted to install the latest round of Office updates via Windows Update, there is a very good chance of seeing this error code. There is a fix, but it is quite severe and may leave you with the task of creating new user accounts if yourenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/mikehall/archive/2008/05/15/windows-update-code-57a.aspx#1697806Sat, 04 Jul 2009 00:04:21 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1697806cm<p>this worked perfectly for me. &nbsp;It&#39;s not unexpected because i had to go through a similar process to install windows XP SP3 on another machine. </p> <p>I did not have the problem of needing to recreate user accounts.</p> <p>thanks for the fix!</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1697806" width="1" height="1">