Hi All,
I have an iMac 27"from 2010 (2,8Ghz intel Core i5, 8GB 1333Mhz DDR3, ATI Radeon 5750 1TB) running High Sierra 10.13.6 which I need to upgrade, as it's running really slow, new OS not supported and difficult to get apps to be updated.
I am struggling with the options so far and what...