WINDOWS 7:AppLocker

If you are usually sharing your computer with someone else, then you might want to restrict their access to your applications, files or documents. Using the AppLocker tool, you have a few options to do this by blocking other users to access Executables, Windows Installers, Scripts, a specific publisher or path. You can simply do this by pressing the Windows key then typing Gpedit.msc. Then go to Computer Navigation -> Windows Settings -> Security Settings -> Application Control Policies -> AppLocker. Right click on one of the options ( Executables, Installers, or Script ) and create a new rule. That should save you from a lot of headaches.