software update

The Age of this computer will Govern what newer version of macOS it will Qualify to install. Use About this Mac from the Apple Icon on Desktop - the required Information will be there.

With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install. Make sure to use Only Safari to commence the download as Others may not work

Make a Time Machine Backup Before attempting. Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina and Big Sur Only support 64 bit and there is no workaround.

Are there any AntiVirus, Disk Cleaner, Optimizers, Un-installers, etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal operation of the OS and may even Corrupt the OS requiring a Reinstallation

What year macBook is that?

You're looking for a macOS upgrade.

The macOS version you can upgrade to depends on the model and year of your Mac.

For details about your Mac model, click the Apple  icon at the top left of your screen and choose About This Mac.

These Mac models are compatible with macOS 10.13 High Sierra:

• MacBook (Late 2009 or newer)

• MacBook Pro (Mid 2010 or newer)

• MacBook Air (Late 2010 or newer)

• Mac mini (Mid 2010 or newer)

• iMac (Late 2009 or newer)

• Mac Pro (Mid 2010 or newer)

These Mac models are compatible with macOS 10.14 Mojave and 10.15 Catalina:

• MacBook (Early 2015 or newer)

• MacBook Air (Mid 2012 or newer)

• MacBook Pro (Mid 2012 or newer)

• Mac mini (Late 2012 or newer)

• iMac (Late 2012 or newer)

• iMac Pro (2017)

• Mac Pro (Late 2013)

For Mojave only:

• Mac Pro (Mid 2010 and Mid 2012 with required Metal-capable graphics card–
https://support.apple.com/en-us/HT208898)

❗️– IMPORTANT! – 32-bit apps don’t work in Catalina. Use GO64 to check yours.

Back up your data, check your applications for compatibility, and depending on which MacBook model you have, click on High Sierra, Mojave, Catalina, or Big Sur. They're full-version upgrades and won't appear in the Updates list.

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