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Delete the Contents of the NGC folder and set up your Windows Hello PIN.
- Navigate to the following folder -
C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft
Note - The AppData folder will be hidden. Select View > Hidden Items check box.
- Right-click on the NGC folder and choose Properties from the menu that appears.
- Navigate to the Security tab and click on the Advanced button.
- Locate the Owner section at the top of the window and click on Change.
- In the Enter the object name to select field you will need to type the user name of your account on that device, (which should be an administrator level account) and click on Check Names. If you are unable to find it, select advanced, find now > Select the admin account.
- When it finds your account, select OK.
- Your account should now show against Owner.
- Check the checkbox next to Replace owner on subcontainers and objects and click on Apply and OK.
- Now you should be able to enter the NGC folder.
- Once you have opened the NGC folder select All files and folders in it and delete them.
Once the files and folders are deleted from the NGC folder, go to Settings > Sign-in options and reset your PIN.
For your reference, see "Method 5: Delete everything from the Ngc folder" in the related article below.
https://www.kapilarya.com/fix-pin-not-working-i...
Disclaimer: The included link in this reply refers to a blog by a trusted Microsoft MVP. Watch out for any ads.