Blue then pink screen
My iMac screen randomly turned blue, then pink, then went to the startup screen - which was all glitched out while I was using it.
The glitchy startup wouldn’t go away, so I had to remove the power cord, and am currently too worried to turn it on.
What should I do????
(If it helps, it’s as old mid-2011 model of the Apple desktop)
iMac 21.5″, macOS 10.13