Windows XP Update options greyed out

[coolecho]

All of the options in system properties, windows update are greyed out and can't make changes. I have XP Pro SP2. I am logged on with admin rights. Last thing I installed was Office 2007. Download but install when I choose is selected ( but greyed ). Update tray icon has disappeared.
Thanks

 

[danomac]

Are you on a domain?

If there is a computer policy regarding WU/MU set, the options are grayed out on workstations, even for admins.

 

[coolecho]

You are right. I found a site:

http://windowsxp.mvps.org/aupolicy.htm

that explained how to fix it, and it worked well. Thanks.