How to reset NVRAM on iMac with bluetooth keyboard? I have a problem with a swipe back in Safari. On my MacBook I could fix it by resetting of NVRAM. I can't find out how to do it on iMac with a Bluetooth keyboard. Do I really need a cable keyboard in order to reset it?
This can be reset using Terminal.


Launch Terminal from the Utilities folder 
Run the command:


sudo nvram boot-args=”-p -r”


Press Enter
Type your password 
Press Enter again 
Restart your computer 


After a restart it should be reset.