Hi, I have set my PIN on my Windows 8.1 but it continues to prompt me on password when I sign in. I can only click the sign-in option and change to PIN in order to input PIN number. How can I set PIN as default sign-in option?
On the login screen below the password box click on Sign-in Options. You can view two option, one for password and one for Pin. Click on PIN and enter the pin. When you restart the computer, by default Windows will remember the previous option which you
have chosen to login to Windows (PIN).
Did you follow all the troubleshooting steps suggested in this thread?
If you have tried all the steps, I would suggest you to run the System File Checker tool (SFC.exe) scan, to fix missing or corrupted system files. Windows Store might crash if system files are corrupted.
Use the System File Checker tool to troubleshoot missing or corrupted system files