After entering the login credentials Windows 8.1 hangs with the black screen for several minutes and only then eventually logins.
The issue started after Windows update to Windows 8.1.
This issue occurs after every logout/restart.
- Start Windows.
- Wait until the system will pass the black screen and eventually will log in.
NOTE: if in your case the Windows virtual machine stucks in a black screen, please refer to the KB 114823
Press cmd+R combination, type
msconfigand hit Enter (return).
In the Services tab locate and uncheck "App Readiness". Click Apply/OK.
- Reboot Windows.