I recently learned a Win7 trick in Microsoft China Win7 Weibo--setting up Group Policy to record computer logon information. So my Win7 can record every move of the computer, know that my computer has been secretly logged in when I left.
Click on the Win7 desktop in the lower left corner of the Round Start menu button, in the search box input: gpedit.msc, click the search out of the program, into the Group Policy Settings window. After entering the Win7 desktop, a red toolbox icon appears in the taskbar below.
In the Win7 search box, enter: Gpedit.msc, enter the Group Policy Settings window
In the WIN7 Group Policy Settings window, select the tree structure to the left, enter the Group Policy → computer Configuration → management module →windows component →windows login options, and click "Display information about prior logon during user logon" to change the setting status of this item to "enabled".
Locate the Windows logon options
Change the setting status of the "Show information about logon before user logon" item to "enabled"
After this setting is successful, the system will display the last login information each time you log on to the Win7 system.
Note: Win7 Professional Edition can use Group Policy.
In a short time, Win7 system by virtue of cool interface and simple, easy to use, fast, security and other characteristics, quickly become the world's most popular users of the operating system, slowly, Win7 has become a lot of friends around the life of learning work partners.