Windows does allow you to add a password to your account later through the User Accounts feature in the Control Panel. Once set, Windows displays a password text bar when it boots up.

A password manager is an online service that stores your passwords as well as other data like credit card numbers, bank ...

Learn how to set up a BIOS or UEFI (Administrator or Supervisor) password on your Windows 11/10 systems, irrespective of the motherboard.

If you want to turn off a firmware password on your Mac that you've set up, the process is basically the same as above, except at step 4 you click Turn Off Firmware Password.

Knowing how to password protect a folder on your Mac can help keep your files safe and secure. To create a protected folder on your Mac, you can turn your folder into a disc image, which is easier ...

Similarly, if you have a file on your computer you want to keep secret only for yourself, you can encrypt it so that no one can open that file without the password.