Require a PIN when your computer turns on or wakes from sleep

PINs are a useful layer of security that ensures only authorized users can use your computer. You can customize when a PIN is needed — you may only want a PIN to appear at startup, for example — but it’s a good idea to at least require one both at startup and when your computer wakes from sleep. To access this feature, open Settings and go to Accounts –> Sign-in options –> PIN.