what happens when you lock a windows computer
This is strictly a security option; it doesn't save power. You set up Windows to lock itself in the Screen Saver dialog box. To get there in Windows 7, click Start, type screen saver, and select Change screen saver. In Windows 8's Home screen, type screen saver, click or tap Settings, and select Change screen saver. When locked, Windows doesn't power down. Instead, it displays the logon screen--or the screen saver of your choice. This is strictly a security option; it doesn't save power. You set up Windows to lock itself in the Screen Saver dialog box. To get there in Windows 7, click Start, type screen saver, and select Change screen saver.