I have an older Mac 12,1. Computer run great and I don't want to get rid of it. I have Sierra 10.12.6 on it. I tried to update to high sierra and was have trouble getting it to download. I partitioned the hard drive and installed High Sierra on the other partition. Now I need to move all my files and apps and I am not sure how. My goal is to get the OS updated enough that I can still use it. I am have issues with some online apps I need. FYI, I know just enough about computers to get myself in trouble, lol.