Hello! I have an iMac (21.5-inch, Mid 2011) 2.5 GHz Intel Core i5, Memory 16 GB 1333 MHz DDR3, Graphics AMD Radeon HD 6750M 512 MB, running macOS High sierra 10.13.6. When I download the Photoshop installer or the Lightroom installer from my Adobe Creative Cloud account I get this message "Sorry, you'll need to upgrade your OS to run the newest version of Lightroom." When I check the minimum system requirements, the only thing that my iMac lacks is the 1GB GPU with Metal support. Does that mean I can't run Lightroom or Photoshop on my machine? Is there any solution?
Download and install, How to, Mac, Problem or error