My Mac won't let me update to a newer OS. What can I do?
I purchased my Mac in 2009. Now I can't upgrade. Any help would be appreciated.
Question marked as
The model and year of your Mac will determine which macOS you can upgrade to,
read the following links.
How to upgrade to macOS High Sierra - Apple Support
How to upgrade to OS X El Capitan - Apple Support
Before upgrading make a full back up of your Mac.
Check that third party apps you use have updates available for the new OS.
Check that your printers/ scanners etc have updated drivers and software available for the new OS.
