For some reason, my Mac won't let me reset my PRAM in the usual way (by holding the relevant keys down when restarting), simply nothing happens when I try it and my Mac just boots up normally every time.
I'm suspecting this may be due to the fact I'm using a PC keyboard after I broke my Apple one a while back.
I read that I can reset my PRAM through Terminal with the following command:
sudo nvram boot-args=”-p -r”
But all I get is this error:
nvram: Error setting variable - 'boot-args': (iokit/common) general error
I'm running High Sierra on a late 2009 iMac if that helps