Photoshop 2020: Update will not open with Mac OS High Sierra 10.13.6 on MacbookPro

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MacBook Pro Retina 15" early 2013 with OS High Sierra 10.13.6 Photoshop CC2020 (latest update) is frozen and will not open or cannot force quit.  I will not update the operating system as there is some software on this notebook that will not run on the current Mac OS.    Bridge 2020 works fine, just cannot open images with CC2020.

Is PS 2019 the last version that will work with Mac OS 10.16.6?

Thanks!
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Harvey Abernathey

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Posted 4 days ago

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Cristen Gillespie

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https://helpx.adobe.com/photoshop/system-requirements.html

It says High Sierra should still run PS. Last published June 4. Perhaps there's something else that's causing trouble? Check out the requirements and see if you meet all of them. If you do, perhaps an uninstall/reinstall is called for?

PS: I thought they'd removed High Sierra a while back, but according to this page, they haven't yet.
(Edited)
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Harvey Abernathey

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Thanks for your response.  I did uninstall, but was concerned that the pop-up window says I will be unable to update in future.  I do not see the app anymore to reinstall.  The icon for PS2020 is still sitting in the dock, and shows it is open.  I cannot force quit it, nor do I see the app available in CC to reinstall.  Appears that it is stuck in my dock, and it is no longer available to me.
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Cristen Gillespie

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Well this doesn't make sense. How is it you won't be able to update in future? You should at least be able to install the version of 2020 that you were running before this update. Have you shut down your computer and then rebooted to see if that prompts the CC app to refresh? That should also clear out the 2020 PS that won't force quit. On rare occasion, my Mac has been so stuck I had to use the Power button to shut down. Hopefully you're not that stuck, but if all else fails.

Is your CC app up-to-date, do you know? I know I had yet another update to the CC app just a couple days ago. I've now got the rainbow icon for it, but I did have to restart to get the icon to change from red to rainbow.

With the Rainbow icon version of the CC app, you should now see the All Apps in a column view, the program on the left, whether or not an update is available, and the 3 dots MORE options on the far right past the Open/Install button. In that menu you should find Other versions where the older versions reside.

Something has to get you unstuck.  We can only keep trying.
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Harvey Abernathey

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The 2020 PS app was stuck and I could not restart or shut down.  I had to do a hard shut-down by holding down the power button.  I hated to go to that level, but I did back-up the computer first.  

When starting back up you were right that the app reset, and I was able to now open 2020 PS, and it showed back up in my Apps menu in CC.   I had found it under the "Updates" tab in the CC menu, and was able to update and now it shows up under the "Installed" menu.

I am going to go ahead and keep my 2019 PS version in the event the 2020 PS drops support for Mac OS 10.13.6. 

 I utilize Adobe Acrobat Pro (CS6) on my notebook and it will not work with the updated MacOS that I have on my desktop computer, so I want to keep this notebook for that use, without updating the OS.  I suspect everything will eventually pass me by with my notebook OS, and I will have to make that transition at that time. 

I was worried that I would not be able to keep up with 2020 PS on my notebook, as I also use it for travel.

Thanks for your assistance in this matter, as I really appreciate it.

Cheers,
Harvey
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Cristen Gillespie

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> Thanks for your assistance in this matter, as I really appreciate it.

You're very welcome. I'm really glad it was that easy to resolve. Going forward—well, a computer that can run current programs and keep the old one running for old stuff. That's what I do, too. At some point it won't make sense, but for now. . . sounds like you're good to go.  :)