I have been waiting for several days to solve the problem while logging on to Windows 7 with fingerprint. If it is not clear, I cannot log on with fingerprint. Please wait until I have waited for a long time. Before I can't use it, I remember that I only used 360 to disable several Automatic startup items. I remember that it was a SQL database and a mySql database, and I felt that these two items were useless. Later, please wait, and I haven't waited for several days. So I lifted the ban again and found that please wait, so it is not a service thing. Then google, they actually said that T400 had this problem, and occasionally could not log on to the normal fingerprint, but I have never been able. I also want to install a software. I heard that the driver may be broken, so I went to the Device Manager to check it. I rely on it. One of my PCI and fingerprint drivers is an exclamation point, and the other is a question mark... why is the driver broken? This is why there is no driver. How can this problem be used. So find my Driver Installer, install it, and restart it! We hope that you will be able to help you in the future when you encounter this problem, that is, first check whether the driver is in good condition. If it is normal, try to install it again.