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Currently using Yosemite on older computer. Want to continue using Adobe cs5 apps which don't work past Yosemite. Don't remember how I installed it but not purchased and don't have installer. Anybody know where I can get installer. Can I install from backup of current computer?

  • Not quite clear from your question... but if you mean can you install an old OS on a new Mac, the answer is... no. Not possible other than as a VM. If you mean 'How do I acquire an old Adobe installer?', that would best be addressed to Adobe. – Tetsujin Mar 20 '18 at 20:00
  • Welcome to Ask Different! :) On what basis do you believe that Adobe CS5 doesn't work on Macs running a macOS version higher than Yosemite? I've seen Adobe CS5 work on all versions of macOS up until macOS Sierra. I'm not saying it won't work on macOS High Sierra, just that I haven't personally seen it installed on a High Sierra machine. – Monomeeth Mar 21 '18 at 3:27

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