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I've installed high sierra, mojave, and catalina, and they all restarted the computer with no crashes etc.
But it is still at 10.12.6
Please help.
MacBook Air 13", macOS 10.12
How exactly are you upgrading your Mac. What are you using, are you using the installer apps direct
from your Applications folder or are you using bootable Installer USB's.
The model and year of your Mac will determine which macOS you can upgrade to,
read the following links.
https://support.apple.com/macos/mojave
How to upgrade to macOS High Sierra - Apple Support
How to create a bootable installer for macOS – 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.
macOS Catalina 10.15 was released recently, the latest version of macOS.
If you are considering upgrading to Catalina be warned that it does not support 32bit apps.
Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps,
some updates may be free, some may be paid. Use this app to discover which apps you have
are 32bit, https://www.stclairsoft.com/Go64/. Once the list has been created you can then
contact the developers of the apps to see if they provide 64bit updates.
SOLVED!
Apple Supported said:
Reboot, hold alt, cmd, and G, until you see the spinning globe, and then... I don’t remember...
No change after successful install of software update | macOS sierra 10.12.6
