I am running OSX 10.8.5. How can I update to a new oS but not High Sierra. I have downloaded various versions but it just won't let me update. I cannot go to High Sierra as it causes problems with my CS5 programs. Any suggestions would be great.

I am running OSX 10.8.5. How can I update to a new OS without going to High Sierra. I have downloaded various versions eg. OSXUpd10.9.1.dmg from the App Store but it just won't let me update. I cannot go to High Sierra as it causes problems with my CS5 programs. Any suggestions would be great. It's very frustrating. Thanks

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Whatever you've downloaded is most likely an incremental update - the base installers for any OS version are only available at the app store. And, Apple always removes the earlier version of an OS when a new one is introduced. So, since High Sierra has been introduced, that is the only one available.

 

Unless you've downloaded an installer previously - it would be listed under your Purchases - you are out of luck if you do not have an older Mac which cannot install HS.

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