I am not able to download Mojave on my 2010 iMac. Running High Sierra 10.13.6.

brucefromsandwich wrote:

I am not able to upgrade from High Sierra 10.13.6 to Mojave on my 2010 Mac

That's correct. That Mac can run anything later than 10.13.6.

It's working properly. Mojave requires an iMac to be a 2012 or newer model.

(222742)