Some users who upgraded to Windows 10 are reporting that their PC is now stuck at the log in screen. In some cases, the field to enter the password is missing, in other cases the keyboard is missing or the password is not being accepted. In yet a related case, the mouse just appear on a blank black screen with the blue spinning circle. If you are facing such issues, read on.
Windows 10 stuck at log in screen
While the reason for each user could be different, here are some general troubleshooting steps which come to my mind. I cannot say that they will help you, but go through them and see if any of these help you.
1] Check if your keyboard and mouse are working properly. Unplug then and reconnect them if you are working on a desktop.
2] Using the Power button in the bottom right corner, restart computer once or twice and see if you can proceed.
3] Can you use the On-screen keyboard from the Ease of Access menu at the bottom right corner of the log on screen? If so, see if you can type using it.
4] Using the Wi-Fi button in the bottom right corner, connect to an Internet connection and then see if the PC accepts your Microsoft Account login credentials. If not, then try your PIN.
5] If you are already connected, unplug the router, terminate the connection and try. Some have reported that this helped.
6] If you do not see the box to log in, press Ctrl+Alt+Del and see if it brings up the login box to enter your password.
7] Restart and boot Windows 10 in Safe Mode and run ChkDsk. Restart your PC and try.
8] In Safe Mode, Run services.msc and make sure Credentials Manager service is set on Automatic.
9] In Safe Mode, access the Advanced Startup Options and see if you can repair the installation.
These are the only thing that comes to my mind. If anyone has any ideas, please do share them below in the comments.
All the best!