Earlier Mac book pro (2011)
Where can I find Mac OS 10.12.8 (upgrade from 10.12.6 to finally install High Sierra
MacBook Pro 13″, macOS 13.5
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MacOS 10.12.6 was the last/highest MacOS OS1 0.12
Next MacOS was the last for 2011 MBAs, 10.13.6
macOS High Sierra - Technical Specifications
General Requirements
- OS X 10.8 or later
- 2GB of memory
- 14.3GB of available storage to perform upgrade*
- Some features require an Apple ID; terms apply.
- Some features require a compatible Internet service provider; fees may apply.
Mac Hardware Requirements
For details about your Mac model, click the Apple icon at the top left of your screen, choose About This Mac. These Mac models are compatible with macOS High Sierra:
- MacBook (Late 2009 or newer)
- MacBook Pro (Mid 2010 or newer)
- MacBook Air (Late 2010 or newer)
- Mac mini (Mid 2010 or newer)
- iMac (Late 2009 or newer)
- Mac Pro (Mid 2010 or newer)
macOS High Sierra - Technical Specifications - Apple Support
https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12
macappstores://apps.apple.com/app/macos-high-sierra/id1246284741?mt=12
Thanks to Arty on getting full installer…
Looking for High Sierra installer - Apple Community
Terminal workaround for The Recovery Server Could Not Be Contacted Error!
https://www.youtube.com/watch?v=ouNQS36dIBw&t=95s