Upgrade 10.12.6 to 10.13.0
Hi.
I'm running 10.12.6 (Sierra) on an old MBP from 2011 and now need to upgrade to 10.13. The problem is I can only find installers for 10.13.2 and 10.13.6 (High Sierra). When I try to install 10.13.2 the system tells me to install 10.13 first...right... :-( I just can't find it any where!! In app store the High Sierra installer is version 10.13.6 and btw gives me an error message when I try to download it (see attached). This really sucks as I'm stuck in-between...
Any clues or links anyone - to a clear 10.13.0 installer? Highly appreciated as Office 365 now requires 10.13.0 on MacOS.
BR Martin