Win7: How do you know if someone else used your computer

To find out if someone has used your computer, first start Windows 7, enter the edit group in the search bar, and immediately search for the edit group policy, click to launch the program to edit the group policy. Expand the Computer Configuration/Administrative Templates/Windows Components/Windows Login option in the tree list on the left side of the Group Policy, double-click on the right side to display the information about the previous login during the user login, and pop up a message about the previous login during the user login. Box, the default state is not configured, select the single option enabled, click the OK button. After clicking the close button in the upper right corner of the window to exit the edit group policy, restart the computer, and the system will prompt the last login status before entering the system desktop, including whether the login is successful, and the detailed login time. In the future, if anyone uses your computer, it will be clear at a glance.