In the adobe application manager next to photoshop CS6 it has "Up to date" and it is greyed out, you can't click on install, I tried installing the trial version last week but it didn't complete, now I purchased the monthly version and it is still not allowing me to download I was able to download Indesign.
Visiontech Multi-Media Yearbooks, Inc.
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Run the Cleaner tool to remove all the remnants of the previous installations and re-install Adobe Application Manager. You can download the Cleaner Tool from the below link:
Make sure that you select the right options while using Cleaner Tool to uninstall only CS6 and not the previous versions.