I found it annoying when Windows 7 one day told me that my password was about to expire.  If you are like me I would rather be the one in control of when I change my password rather than Windows dictating this.

Here is a quick easy way to turn this off.

1. Open the Local Users and Groups administration panel. Do this the easy way; Start –> then enter  lusrmgr.msc into the start menu search box. (or the Run box on XP)
2. Double click to select your user
3. Check the box next to “Password never expires”
4. Click OK, and your done.