SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/sec-lock-screen-windows-l

You step away from your Windows PC for a minute. Which shortcut locks it instantly?

Windows key + L locks the computer.

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  1. Windows key + L ✔
  2. Windows key + O
  3. Ctrl + L

Why: Windows key + L locks your PC right away, so nobody can read or send things as you. Windows key + O only locks the device orientation, which is a different thing. Make it a habit every time you stand up.

Huh, didn't know that: Ctrl+Alt+Del also leads to a security screen where you can lock the desktop, switch user or sign out.

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Why did the polar bear call tech support? His screen was frozen.
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References

Answer: Windows key + L. Windows key + L locks your PC right away, so nobody can read or send things as you. Windows key + O only locks the device orientation, which is a different thing. Make it a habit every time you stand up.

  1. Microsoft Support: Keyboard shortcuts in Windows support.microsoft.com/en-us/windows/keyboard-shortcuts-in-windows-dcc61a57-8ff0-cffe-9796-cb9706c75eec
    Windows key+L: Lock the computer.
    Checked 2026-10-10.

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