Downgrade to macOS High Sierra

[bdcstr]

Hi,

I'm in the process to sell my macbook pro 2018. I reset it and install the latest macOS (Ventura).

I have an interested buyer today, but for some reasons he needs macOS High Sierra (compatibility with old softwares). I was looking if this is easily feasible, but I'm unable to download macOS High Sierra installer: I'm always redirected to the App Store, where the installer is flagged as "not compatible with this software".

Is there another way to find the installer, so I can perhaps create a bootable USB stick?

Any tips are welcome

 

[Grumpus]

Is there another way to find the installer, so I can perhaps create a bootable USB stick?

Dosdude1's macOS High Sierra Patcher can download an installation app directly from Apple's servers and put it into /Applications. After the download completes, you can exit the patcher and then use createinstallmedia to make an installation USB.

 

[chrfr]

Hi,

I'm in the process to sell my macbook pro 2018. I reset it and install the latest macOS (Ventura).

I have an interested buyer today, but for some reasons he needs macOS High Sierra (compatibility with old softwares). I was looking if this is easily feasible, but I'm unable to download macOS High Sierra installer: I'm always redirected to the App Store, where the installer is flagged as "not compatible with this software".

Is there another way to find the installer, so I can perhaps create a bootable USB stick?

Any tips are welcome

The 2018 MacBook Pro requires a special build of 10.13.6. You can see if it's available through internet recovery by holding command-option-shift-R at startup, but I think the last time I tried this, it did not work.