After being left out of Vista, the option to run an application as a different user makes a return in Windows 7. To do this, hold down Shift, then right-click on a shortcut or executable file and choose Run as a different user from the menu that appears. This should come in handy if you’re the owner of the PC but happen to be using someone else’s account.
(For a full guide to Windows 7, order the Essential Windows 7 Handbook 3rd Edition, on sale now from newsagents and online.)

