Because CS5 is a legacy product (released in 2010), you may encounter modern activation hurdles: Server Connectivity
: If you purchased digitally, check your email for a receipt or a confirmation message from Adobe or the retailer, which often includes the serial number. serial number for adobe photoshop cs5 extended trial
: If CS5 is already installed on a machine, go to Help > System Info within the app. Scroll down to find the Serial Number (it may appear as five blocks of four digits; a full key is typically six blocks). Because CS5 is a legacy product (released in
The “trial” version was a time-limited (usually 30 days) full-featured copy distributed by Adobe. After the trial ended, the software required a valid, paid serial number to continue working. The “trial” version was a time-limited (usually 30
to remove old installation records before attempting a fresh install. modern alternatives to Photoshop CS5 or instructions on how to reach Adobe Support for a license reset? Need to activate CS5 on a new iMac - Adobe Community 2 Dec 2014 —