Once in Safe Mode, backup your data if you can then open Device Manager via pressing win+x > Device manager > update all drivers that you may be able to. To do so, open Activity Monitor > choose DVD Player > Click on Force quit button > then re-load your DVD disc to have a try. If you do not have a restore point, you can go to Troubleshoot > Advanced Option > Startup Settings > RestartĪfter you restart, press the button you need to to get into Safe mode, usually 4 Try another DVD player for your Mac computer like VLC than Mac's built-in DVD player to solve Mac DVD player not permitted on regionless disc trouble. You can check to see if you have a restore point here where you can go back to before the issue started. This will try to make Windows repair itself.Īlso try to go to Troubleshoot > Advanced Option > System Restore Go to Troubleshoot > Advanced Option > Startup Repair You can also hold shift > press restart in the start menu to do the same You’ll know when you’ve been hit by this bug when you boot up your Mac and see a blank white display. Usually, this rare bug happens after updating macOS to a new version, but it can happen at any time. You may only need to do it twice, but on the third start Windows will boot into the recovery environment. From time to time, you may experience one of the more frustrating Mac glitches a white screen during boot. Start your PC then just as Windows loads - press and hold Power Button for 5 - 10 seconds to perform a shut down.

Mac dvd player grey screen