Upgrading El Capitan to High Sierra
I installed a Samsung SSD in my iMac Model 10,1. I then installed El Capitan using the Recovery mode. Format is Mac OS extended (Journaled).
Now I want to upgrade to High Sierra but I don't get that choice in the App Store. In System Preferences I have the option turned on to install OS X updates.
Terry
iMac, OS X El Capitan (10.11.6), 8 GB RAM