I have a Dell M6800 laptop with built-in fingerprint scanner and I've upgraded to Windows 10. It works usually after a restart, but many times when I awaken it from sleep mode, it completely ignores the scanner like it's not there. I notice disk activity when it works after placing my finger on it. But when it's not working, there is no disk activity. In that case, I have to login with a password. When awakening from sleep mode, It's about 50/50 that it won't work. I have the latest drivers for the fingerprint scanner. But I don't think it's the scanner, I think it's the OS or the Control Vault related to the fingerprint scanner. Please help as this is annoying and time consuming. I paid the extra money for this feature so I could login fast, but that's not happening. Thanks.