You don't.
You just have to type :!killall -9 vim and press enter
You don't exit VIM else you die. VIM is the life.
Unplug the main power supply.
Install vi.
unplug the power cable, which is alway on the back of your computer.
@dongyu1009, it says running on battery!
@Ornataweaver . OK ,my bad.
Maybe unpluging the battery is a good idea.
Most helpful comment
Unplug the main power supply.