Windows Vista and Windows Updates: Once you click to open Windows Updates look on the left side for Change Settings and if you want to download and install the Recommended updates then under Recommended updates, select Include recommended updates when downloading, installing, or notifying me about updates check box. I would not include these updates until one sees what they are.
In the XP there are two updates. One is the Express which contains all critical updates and the other is Custom which is those recommended by MS. Also, be sure to look on the left side for any updates that you might need as for Software or Hardware or Driver updates....
Ben David