If you are going to leave your laptop on your desk in class for a few minutes, say, to go to the toilet, you’ll need to lock it to ensure your friends don’t go through your files or pull a computer prank on you. I’m sure they wouldn’t mean any harm, but they may accidentally delete some essential files or important documents.
Luckily there’s a simple shortcut built-in to Windows 7 that locks your computer:
Windows Key + L
The Windows Key is that picture of a house between the left Ctrl and Alt keys, and hopefully you know where the L key is.
This takes you back into the log in screen, so you have to put in your password. Do this whenever you leave your computer on it’s own, but you shouldn’t be doing that too much anyway.
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