How to Remove Os X Yosemite from Mac?

How To Uninstall Apple Mac OS X Yosemite from Mac OS

Open the Finder on your Mac, and click on the Applications folder on the sidebar. Search and locate Apple Mac OS X Yosemite in the Applications folder, then drag its icon with your mouse to the Trash icon located at the end of the Dock, and drop it there.

How do I Uninstall Mac OS X?

Exit the program you want to delete.
Open the Applications folder, which youll find by opening a new window in the Finder icon with a blue face, or clicking on the hard disk icon.
Drag the icon of the program you want to uninstall to the Trash.
Empty the Trash.

How do I Downgrade from OS X Yosemite to Sierra?

Make a backup of your entire hard drive onto an external hard drive.
Make a Bootable MacOS Installer USB flash drive.
Reboot the computer and hold down the option key as soon as the screen turns grey.
Release the option key when the boot drive selection screen appears.
Boot from your USB drive.
Do a clean install.

Can you Remove Mac OS from Mac?

If you only want to delete the installer, you can select it from the Trash, then rightclick the icon to reveal the Delete Immediately… ... Alternatively, your Mac can delete the macOS installer on its own if it determines that your hard drive doesnt have enough free space.