How to change User Account Control settings in Windows 7 UAC was one of Vista's most annoying features, and it's still hanging around like a bad smell in Windows 7.

You can change your privacy settings on Twitter so only your followers can see your tweets or tag you in photos.

How to Change a User Account on an iPhone. Your iPhone saves all of your settings and data in your user account, called the "Apple ID." You may want to change user accounts on your iPhone for a ...