Disable PIN Sign In - Microsoft Community
https://answers.microsoft.com/en-us/windows/forum/all/disable-pin-sign-in/521bfbe9-4df7-499e-b027-12d19f6d6878
Mar 04, 2021 · Open the Settings, and click/tap on the Accounts icon. If you are using a Microsoft Account to sign in, then make sure that you verify your account on the PC. Select Sign-in options, and click/tap on I forgot my PIN. Click/tap on Continue. Leave the PIN fields empty, and click/tap on Cancel. Your PIN will now be removed.
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