Instead of pressing CTRL+ALT+DEL or windows + L to lock your machine you can create an icon to lock your machine. There are very simple steps by using it you can simply lock your computer using single mouse click. Just Follow the simple step >> 1. Right click an empty spot on the desktop, point to New and click Shortcut. 2. In the Create Shortcut dialog box, type the following in the 'Type the location' of the item text box: rundll32 user32.dll,LockWorkStation 3. Click Next 4. In "Type a name for this shortcut", type "" (any name as u wish) and Click Finish 5. This will Create a shortcut in your Desktop. 6.Now each time when you want to lock the computer , Just click on this shortcut.