A friend was recently given a 2019 iMac, apparently as a gift. Turns out it was actually a 2007. My friend needs an appropriate OS. I still have snow leopard on my 2007. What OS will work on her 2007 ...

MacFixIt reader Greg Neutra notes that unlike most other recently shipping Macs, the system install disks included with the iMac G5 -- which contain Mac OS X 10.3.5 -- will not work with other Mac ...

I just replaced the hard drive on my 2008 24-inch iMac (model 8,1) with an SSD. I am running OS 10.6.8. Now AFTER Shutdown or in Sleep mode, I can hear a fan still spinning along with a quiet clicking ...

Until recently if you wanted to upgrade (or downgrade) old Mac to Mac OS X Lion (from 2011) or Mountain Lion (from 2012) you needed to pay Apple and the company would send you a special download code ...