How to Upgrade an Old MacBook to latest version supported (FIXED 2025) | Old Mac OSX To Latest macOS

Today, I'll show you how to upgrade a Mac from an older macOS version to the latest possible version.

For demo purposes, I will upgrade from Mac OSX Lion to macOS Monterey. However, if you wanna upgrade from macOS X Mountain Lion, Mac OS X Yosemite, Mac OS X Maverick or Mac OS X El Capitan, you can follow the same steps.

This method works on

MacBook,
Macbook Air,
Macbook Pro,
MacMini,
iMac,
MacPro,

You can Upgrade your book form
Mac OSX Lion to latest version supported like macOS Sierra, or High Sierra
Mac OSX Mountain Lion to it's latest version supported
Mac OSX Yosemite to it's latest version supported
Mac Maverick to it's latest version supported
Mac El captain to it's latest version supported

Best of luck

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