In order for a password to be useful on your laptop, it needs to be complex. That makes such a password a pain in the rump to type on a tablet PC, or any other time you turn on a Windows computer. To alleviate the pain, you can assign a PIN to your account.
You’re prompted to set up a PIN when you first add your account to Windows 10. If you haven’t yet done so, follow these steps to set a PIN for your account:
Click the Start button.
From the Start menu, choose Settings.
In the Settings app, choose Accounts.
On the left side of the screen, choose Sign-in Options.
Click the Add button located below the PIN heading.
Sign in to your Microsoft account.
It’s the same password you use to log in to Windows. Type that password and click the Sign In button.
Type a personal identification number or PIN.
Type the PIN again to confirm.
Click the OK button.
The PIN is assigned.
To sign in to Windows on your laptop, type the PIN. You don’t even need to press the Enter key — just type the numbers. Try it now: Sign off and then sign back in.
To remove the PIN, repeat the steps in this section, but click the link I Forgot My PIN after Step 4. Rather than type in a new PIN, click the Cancel button, and the PIN is removed.