HOW TO UPDATE MY OS X YOSEMITE
HOw to update my macbook air 2014
MacBook Air 13″, OS X 10.10
Question marked as
Back up your data, check your applications for compatibility, click here, and then on the download link for El Capitan, High Sierra, Mojave, Catalina, or Big Sur.
Catalina and newer won't run 32-bit software; download and use Go64 as well as using the first link above.
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