When I recently upgraded my Windows 10 install from 10122 to 10130, I lost the ability to sign in using a PIN.
I found a solution in the Microsoft Forums posted by Rohit Chettri. This was originally posted in connection with Version 9926:
We’ve recently fixed some problems with PIN and picture password login that existed prior to Build 10041, however your PIN will only start working automatically if the PIN was created after the fix was implemented.
While we’re working on a more convenient way to resolve this problem, we wanted to provide a workaround for anyone who created a PIN on an earlier build and are still experiencing a problem.
To repair your PIN & picture password:
- Open File Explorer and browse to this location:
Delete everything within that folder
Go to Settings-> Accounts->Sign-in Options
Click Add a PIN again and set your PIN
PIN sign in should work going forward
This worked a treat for me.
If it works for you don’t forget to thank Rohit Chettri.