Trying to Downgrade from High Sierra to Sierra. Help!

[SuperMacioBrother]

I recently "upgraded" to High Sierra.
But High Sierra doesn't play well with my 2011 MacBook Pro.
So I want to downgrade it back to Sierra.
I've looked at youtube and other places on the web, but nothing addresses my exact problem or actually works.
Help! Thanks!!

 

[MircowaveSounds]

Hi there,

You could do 2 things

1.
- backup everything
- press Shift-Option-Command-R at startup. This will allow you to install the original os that came with the macbook. I think it's OSX lion ?
- Erase the drive
- Then upgrade to sierra with an installer.

2.
- Backup everything.
- Create a bootable installer (https://www.macworld.co.uk/how-to/bootable-mac-installer-3575875/)
- press command+ R at startup then erase the drive.
- shut down
- boot the mac while holding option
- choose the macos sierra installer