===Selectively Uninstalling Windows Updates===

To obtain a list of installed patches you can do:

  wmic qfe list

To uninstall a listed patch, you do:

  wusa /uninstall /kb:<kbnumber>

Here are some links with more information: \\
http://www.systemcentercentral.com/BlogDetails/tabid/143/indexid/57960/Default.aspx \\
http://support.microsoft.com/kb/934307\\
http://technet.microsoft.com/en-us/library/dd883262(WS.10).aspx\\

Note: the 934307 KB article says that you can't use /uninstall on Windows 2008 - this does not apply to Windows 2008 R2 - they enabled the uninstall switch on R2 (see the last link).


And to do it from a remote computer : 
  wmic /node:SRVNAME process call create "powershell wusa /uninstall /kb:2844286 /quiet /norestart"

and to have more information on parameters
  wusa /?