Hi,
Thank you for writing to Microsoft Community Forums.
We understand the concern as you are having difficulties in signing in to the PC using Windows Hello PIN. In order to get clarity and to assist you accordingly, please reply with the answers to the questions below:
- What is the Version and Build of Windows 10 installed? (Type winver in Windows search/Run command)
- What is the make and model of the PC?
- Are you aware of any changes on the PC??
Step 1: Check the Windows Services
- Type services.msc and click OK
- Look for CNG Key Isolation service and Start it. Make sure that the Startup type is set to Manual
- Restart the PC
Step 2: Remove NGC folder content
- Sign-in to your Windows 10 Administrator account using password.
- Now; open your File Explorer and browse to the location: C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft
- Right click on the NGC folder and select Properties from the context menu.
- Under the "Security" tab, click on "Advanced" option.
- From the following window, next to the Owner section, click on the "change" link.
- Under the Enter the object name to select option, input Administrators if you are using administrator account, or the local user name.
- Click on Check Names and then OK.
- Once you have followed all these steps, you should be able to enter NGC folder. Delete all the files from the folder
- After removing contents of the NGC folder, add a PIN/Face/Fingerprint by following the path: Click on Start Menu > Settings app > Account Settings> Sign-in Options> Add a PIN
Regards,
Aditya Roy
Microsoft Community – Moderator