can I upgrade a OS X El Capitan 10.11.6 to High Sierra
cCan I upgrade a OS X El Capitan 10.11.6 to High Sierra
iMac 21.5″, OS X 10.11
Yes. Back up your data, check your applications for compatibility, and depending on which iMac model you have, click on High Sierra, Mojave, Catalina, Big Sur, or Monterey. If you get a Mac App Store preview page, change the https at the beginning of its address to macappstore.
Catalina and newer won't run 32-bit software; download and use Go64 to scan for it. To look up other programs, click here.
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