Unable to Install Lightroom on MacOs 10.13 High Sierra

Make sure your computer meets the minimum CPU & GPU requirements. Most Creative Cloud apps work on:

• Windows 11 (64-bit), Windows 10 versions 22H2, 21H2, 21H1;
• MacOS 13 (Ventura), 12 (Monterey),  11 (Big Sur).  

- https://helpx.adobe.com/creative-cloud/system-requirements.html
- https://helpx.adobe.com/photoshop/system-requirements.html
- https://helpx.adobe.com/photoshop/kb/photoshop-cc-gpu-card-faq.html

Unfortunately, High Sierra is not supported.  It's fully 5 OS versions back now.  Adobe expects users to have current equipment & software no more than 2 versions back.

You can request a refund within 14 days of downloading.  After that there is 50% termination fee.

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the cc desktop app should offer a compatible lr. install the cc desktop app from here https://creativecloud.adobe.com/apps/all/desktop?action=install&source=apps&productId=creative-cloud and use it to install your adobe subscription and trial programs. 

if you have trouble downloading the cc desktop app or you see an error message when trying to install, make sure you have a compatible os (https://helpx.adobe.com/creative-cloud/system-requirements.html), and use the alternative download links at page bottom here, https://helpx.adobe.com/in/download-install/kb/creative-cloud-desktop-app-download.html