The Adobe software you're attempting to install is "non-genuine."
When Adobe detects fraudulent serial numbers and product keys, they are immediately deactivated. Any future attempts to install or reinstall software with this key will fail.
Unfortunately, this is a serious but common issue that can occur for a number of reasons. Learn more about how this happened below.
"Once I got the product it seemed legit - until I installed it. I installed it, opened the program, and it told me the code I entered was invalid and I needed to purchase a new one! What? So I went back to the website and lo and behold ALL of the software and any reference to it was gone - along with the seller who was selling it!"
- ksmithgm
If any of this sounds familiar, you may be a victim of fraud.
Here is a list of the most common ways people end up with non-genuine serial numbers or product keys:
Purchased it from an unauthorized reseller
Counterfeit software is often purchased by customers searching for discounts on reseller websites like eBay or Amazon. They purchase a physical CD, or digital download that appears to be genuine, but is not.
Unknowingly obtained pirated or stolen software
This software may have been obtained illegally from torrent sites offering cracked software or serial number generators.
Given non-genuine software from the original purchaser
You may have been given this software for work or as a gift from someone who unknowingly purchased an illegal copy.