Windows Vista by default shows the most recently used programs on the start menu, and there's a submenu for recently used files.
Call me a privacy nut, but I've never been a fan of having either one show up.
Right-click on the Start button, and then click Properties. You should immediate see this dialog:

The Windows Vista start menu search box is one of my favorite features in
As it promised, Microsoft Corp. yesterday started sending 
The
Every time you delete a file,