What to do if windows updates stop working after installing XP SP3

Register the Wups2.dll file in Windows

loadTOCNode(2, ‘resolution’); To register the Wups2.dll file in Windows, follow these steps:

net stop wuauserv

regsvr32 %windir%system32wups2.dll

Note For a computer that is running Windows XP Professional x64 Edition, type the following command, and then press ENTER:

regsvr32 %windir%syswow64wups2.dll

net start wuauserv