OK I have a imac 2009 desktop computer with MacOS High Sierra on it. What should I do to upgrade the operating system?
iMac, macOS 10.13
That's as far as a 2009 iMac can go, High Sierra. If you need a more up-to-date version of Mac OS it is time to buy a new Mac or at least a newer Mac. You have many many options available to you, if you need some help finding those options please let us know.
OK I have a imac 2009 desktop computer with MacOS High Sierra on it. What should I do to upgrade the operating system?
