How to Force Quit a Mac If It’s Frozen
By Leanne Hays
You can force restart your iMac or MacBook if it freezes. Using force quit is the last option you should try if your Mac is frozen, because you may lose work you haven't saved. If possible, shut down your Mac by opening the Apple menu and choosing Shut Down. If your cursor won't move, though, here's how to force quit and restart a Mac.