I hope this info may be helpful to someone else.Įdited by Oxonsi, 17 April 2017 - 05:08 PM. The service stores and uses long-lived keys in a secure process complying with Common Criteria requirements.' The service provides key process isolation to private keys and associated cryptographic operations as required by the Common Criteria.

But with the benefit of hindsight, it now makes sense that the CNG Key Isolation Service may cause PIN-login to fail.ĭescription: 'The CNG key isolation service is hosted in the LSA process. This on-screen keyboard also offers quick access to the Windows 10 clipboard, which holds multiple items you've cut or copied, and speech-to-text typing (or you can just type Windows Key+V to get. From the description of the service I did not guess that it was related to anything for which I'm using my machine. And I was mistaken in my previous post: I actually did NOT disable that Service on my other machine, which is why the PIN-login always worked there. I disabled it, but it is required for PIN-login. I discovered the solution in my case: it was related to the CNG Key Isolation Service (KeyIso). I liked the ability to sign-in with a PIN. Otherwise, let me know of any other way I might fix this. I don't think that could be related to this issue, but let me know if there is a Windows Service on which the 'Sign-in Options' depends. The last changes I had made to the OS were disabling some non-essential Services. Running sfc /scannow showed no integrity violations found. And if I logout, the login screen is still without 'Sign-in options' under my name.

However, it appears the PIN is immediately forgotten by Windows because even after I've finished, it still shows only 'Add' under the PIN section of Accounts -> Sign-in options. If I click on 'Add', I am allowed to add a PIN after entering my password. Under Settings, Accounts -> Sign-in options, I now see the option to 'Add' a PIN, as if I had never set a PIN. Now it has reverted to signing in with a password without the option to change back to PIN. this problem has been intermittent for a long time, now after the last update of windows 10 it happens every time and my. the only useful option is to restart which gives a good sign-in screen with text box and keypad on touch screen for pin and even responds to the keyboard.

The 'Sign-in Options' link is suddenly missing from my Windows 10 login screen. The touchscreen, touch-pad, mouse and keyboard all seem to be working.

Windows 10 no sign in screen