On Windows 10, if you crawl the confidentiality parameters, you can find a possibility to create a PIN code.
Is it possible for a computer to get a PIN code ?
PIN means Personal Identification Number, or number of personal identification, it’s a kind of password. So it is not reserved to mobile phones.
It doesn’t replace the Windows 10 password, it’s just a way to ease the connection, you enter 4 figures, and you don’t need to type Return or Enter. It is also more secure. But don’t forget your password.