To lock a laptop with a password on Windows, you first need to set a password for your user account if it is not already set. Then, you can manually lock the laptop anytime using keyboard shortcuts. Here are the main steps:
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Set a user account password:
- Open Control Panel, go to User Accounts, then Manage another account.
- Select your account and click "Create a password".
- Enter and confirm a new password, add a hint, and create the password. Or alternatively, go to Settings > Accounts > Sign-in options > Password, and add a password there.
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Lock the laptop manually when you leave:
- Press Windows key + L to lock the screen instantly.
- Alternatively, press Ctrl + Alt + Delete and select "Lock".
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To unlock the laptop, enter your password on the login screen.
This password locks your laptop and keeps your files and programs safe until you log in again with the password.