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want to upgrade my OS X El Capitan iMac 21.5 inch mid 2011 to latest OS

suitable OS for mi iMac mid 2011, current OS X El Capitan

iMac 21.5″, OS X 10.11

Posted on Jul 31, 2020 5:24 AM

Reply
Question marked as Top-ranking reply

Posted on Jul 31, 2020 5:45 AM

A 2011 iMac can only upgrade as far as High Sierra.


Open Safari, Firefox will not work for this,

click on the link below,

How to upgrade to macOS High Sierra - Apple Support

Go to Section 4 and click on Get macOS High Sierra.

This will redirect you to the App Store High Sierra download page,

it should say Get or Download.


Before upgrading make a full back up of your Mac.


Check that third party apps you use have updates available for the new OS.

https://roaringapps.com

Check that your printers/ scanners etc have updated drivers and software available for the new OS.


Connect your mac to your router via cable rather than rely on WiFi.

Do not use your mac while it is downloading

and do not use any other devices that share the same internet connection.


If the App Store says ‘Open’ then it is detecting a previous download of the install app

go to the Applications folder locate Install macOS High Sierra.app.

Move it to the Trash, empty the Trash.

Restart, click on the link again, the App Store should say ‘Get' or 'Download'.


The newer OS's require macs to be from 2012 or newer and have 'Metal' capable graphics cards.



1 reply
Question marked as Top-ranking reply

Jul 31, 2020 5:45 AM in response to cirilito jr

A 2011 iMac can only upgrade as far as High Sierra.


Open Safari, Firefox will not work for this,

click on the link below,

How to upgrade to macOS High Sierra - Apple Support

Go to Section 4 and click on Get macOS High Sierra.

This will redirect you to the App Store High Sierra download page,

it should say Get or Download.


Before upgrading make a full back up of your Mac.


Check that third party apps you use have updates available for the new OS.

https://roaringapps.com

Check that your printers/ scanners etc have updated drivers and software available for the new OS.


Connect your mac to your router via cable rather than rely on WiFi.

Do not use your mac while it is downloading

and do not use any other devices that share the same internet connection.


If the App Store says ‘Open’ then it is detecting a previous download of the install app

go to the Applications folder locate Install macOS High Sierra.app.

Move it to the Trash, empty the Trash.

Restart, click on the link again, the App Store should say ‘Get' or 'Download'.


The newer OS's require macs to be from 2012 or newer and have 'Metal' capable graphics cards.



want to upgrade my OS X El Capitan iMac 21.5 inch mid 2011 to latest OS

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