How do you lock your computer for a while

**How do you lock your computer for a while **:

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Hello-How are you hoping that everyone is good---
I will show you a trick today that if you go out of your computer for a while then no one can use a laptop on your computer. Let's start------ First press the Windows button on your computer keyboard and L button press than ok. See your computer is locked for a while.If you like tips, you must vote it.