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Level 1

4 points

Upgrade??

How do I upgrade my OS on a MacBook Pro 10.10.5 purchased in 2015?

Posted on Oct 24, 2021 12:01 PM

Top-ranking reply

Level 8

35,332 points

Posted on Oct 24, 2021 12:37 PM

There's likely something here from which to choose:

While there are newer ones there, too. Choose wisely!

These are downloadable installers; they load, & then

download and build the version, in your Mac. So they

likely would follow pattern of restart, restart, etc after.

And its wise to have backups in off-Mac storage; such

as Time Machine, dedicated on their own drives, etc.

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