iMac
Progress bar stuck at 100 percent for a long time
Current Pro Desktops
Progress bar stuck at 100 percent for a long time
Current Pro Desktops
Force shutdown by holding down the power button, then restart. If the same problem occurs try the troubleshooting steps in If your Mac doesn't turn on - Apple Support
Force shutdown by holding down the power button, then restart. If the same problem occurs try the troubleshooting steps in If your Mac doesn't turn on - Apple Support
iMac