Amazon.com, I just purchased a USB stick with four apple Mac OS X versions. All works well. Follow the instructions.
My system was auto upgraded to Catalina without my consent. Massive havoc as critical 32 bit apps vanished and system is now running in mud. Want to reinstall Sierra. Cannot find a good Sierra app anywhere to use. Lots of DMG's out there, no app. High Sierra is about the only option. I have a TM backup that was conducted while the system was running Sierra and I want to go back there, even if it means using High Sierra. Thus, my question.
Will a TM backup conducted under Sierra mesh with High Sierra? I understand HS rewrote the volumes. Some respondents say it will work, Apple says no. I'm stuck.
I have a High Sierra installer ready to go and the TM backup to the state I want the system to be in. But if the TM backup using Sierra won't work with a new formatted High Sierra OS, I'm screwed.
Help is greatly appreciated. Love to find a Sierra app out there, but nothing on Apple pages and nowhere else.