I have OS X El Capitan Version 10.11.6 installed and want to upgrade to macOS Sierra 10.12.6
I have downloaded macOS Sierra version 10.13
I have .dmg file of macOS Sierra 10.12.6 but when I am going install it gives me the following error:
I found a lot of .dmg of version 10.12 but I didn't get anywhere then I got version 10.12.1.
Now I am confused that do I compulsory need to fine 10.12 and install it and than after update 10.12.4 and than after 10.12.6?