Imac screen pc stuck on loading screen
How to reboot an imac screen pc with a Bluetooth keyboard?
iMac 21.5″, macOS 10.15
Question marked as
To restart/reboot the iMac.
Hold the power button until the iMac shuts off, then press the power button to turn it on.
Getting the wireless keyboard reconnected, depends on which one you have.
If you have a newer Magic keyboard, then connect it to the iMac using the charging cable.
If you have the older AA battery keyboard, then you may need a USB keyboard to get it reconnected.