Black Screen With Cursor on Logout in Yosemite This is specifically occurring on Yosemite Macs that have been NetRestored. Initial login works fine. However, when restarting the Mac or logging out of the user, a black screen appears with only the mouse cursor there. (Please note this is on logout, not login. I'm quite familiar with the login issue.)

I cannot even get out of it by sending a Restart (Lose Changes) command through ARD. Only a manual force shut down solves the issue. 

In the past, I've removed the /Library/Preferences/com.apple.loginwindow.plist file and it's solved the issue. However, it's still occurring now. Any suggestions?
Just returned here, although old question, to leave the solution I have found  after long suffering this problem in High Sierra after trying to upgrade from version 10.13.5 to 10.13.6. I deleted these files through terminal, then rebooted. 

You may need to enter your admin password when asked:

sudo rm -f /Library/Preferences/com.apple.loginwindow.plist
sudo rm -f /private/var/db/.AppleUpgrade
sudo rm -f /private/var/db/.SoftwareUpdateAtLogout
sudo reboot