Win10 preview version 10061 login interface black screen how to solve

Win10 preview version of the small problem emerges endlessly, the recently launched Win10 preview version 10061 is exploding login interface black screen problem, so it can not log in the system. To completely solve this problem, we need to install a patch released by Microsoft.
Some users who upgraded to Win10 10061 preview encountered a black screen on the login screen. The specific performance is: the login screen is black, only one mouse pointer is displayed, even if you press Alt+Tab or Ctrl+Alt+Del, there is no response. , which makes it impossible to log in to the system. Of course, this is a bug in the Win10 10061 preview system. To this end, Microsoft pushed the KB3055415 fix to solve the problem.

Friends who have encountered this problem should go to "Windows Update" to find the download and install KB3055415 update.
In fact, if you encounter such a black screen login screen, before Microsoft fixes, we also have a way to log in to the system:
In the login interface, press Ctrl, the cursor will be located in the login password input box ( Although we can't see the password input box on the black screen, it is there.) Then enter the login password and press Enter to log in to the system. If you can't log in if the password is entered incorrectly, just press the Enter key again to re-enter the password and press Enter again to try to log in.
There were also users who said that installing Win10 to "prepare the device to restart"; this step has a black screen, this problem can be solved by the PE system.