Most companies I’ve worked for all use PC, but I’ve always used apple as my personal phone. Although I never purchased a desktop until recently, so I’m still getting familiar with iOS. I’ve also acquire an old iMac that will not boot. After trying the suggestion I’ve seen online, and contacting support. Still no luck. I would normally start troubleshooting bios, but no keyboard command seems to work. And I’m not even gonna try to figure out how to replace the hard drive.