How to Downgrade Mac Os Sierra to El Capitan?

How to Downgrade from MacOS Sierra to El Capitan 2019

Erase macOS Sierra . Select the item of "Restart" from the "Apple" menu of your Mac .
Get OS X El Capitan Reinstalled. Select "Reinstall OS" option from OS X Utilities Window.

Can I Go from Sierra to El Capitan?

Now that the macOS Sierra has been erased from your drive, you will need to reinstall the OS X El Capitan. Reinstall OS X from OS X utilities and choose the OS X El Capitan Installer. once the process is complete, restart the Mac.

How do I Downgrade from High Sierra to El Capitan Without Time Machine?

Shut down your Mac, and restart it using macOS Internet Recovery.
Then, select Disk Utility to completely erase your startup volume.
Then, select Reinstall OS X.
Install that version of OS X, following its instructions.

Can I Install El Capitan over High Sierra?

If you have macOS Sierra the current macOS version, you can upgrade straight to High Sierra without doing any other software installations. If you are running Lion version 10.7. 5, Mountain Lion, Mavericks, Yosemite, or El Capitan, you can upgrade directly from one of those versions to Sierra.

How do I Downgrade my MacOS High Sierra?

If you're on High Sierra 10.12. 4 or later, and you want to revert to the version of macOS that shipped with your Mac, then you're in luck! This is one of the easiest ways to downgrade your Mac: Restart your Mac, while holding down the 'Shift+Option+Command+R' keys.