Chosen Solution
So so my MacBook Pro was working absolutely fine earlier when suddenly Google Chrome decides to crash. Had to power off and restart using the power key. When it restarted it wouldn’t load properly, was really slow and crashed again. The third restart the Apple taskbar failed to load. Fourth restart, everything loads but it fails if you try to open something and the screen flashes black. This is now continuing to happen every time I try to load. What the !&&* is happening? Any help greatly appreciated!
Something is corrupted from the crash. Its also possible you got hit with a virus/malware! Lets try restarting in Safe mode and then if that fails you’ll need to try to re-install the OS using OS recovery. Let us know how it goes. Reference: Mac startup key combinations