
NOTE: For best results, remove your old CS3 / Acrobat 8 BEFORE installing the replacement version. You will be asked to log-in with your Adobe ID and provide a valid CS3 serial number.Īctivation or connection error when starting CS3 or Acrobat 8 If you have CS3 or Acrobat 8, see this help article for further details on how to obtain a replacement version & new serial number that does not require activation. CS3 Activation Servers have been retired. It worked:Īctivation or connection error | CS3, Acrobat 8 I've followed the following instructions given by Nancy OShea. Always checking that I was the Administrator. Ran CCCleaner tool several times as well. If you clicked on program icon it would open a screen starting a a trial version of PS or Premier. I ran windows uninstall several times as it never completely removed the files from computer. If you click Ok, it will advance to the same activation screen we normally see listing your serial number, activation number, and blank fields to input new activation numbers, etc. This is where you clear these fields and enter the new serial number you obtained through the link listed in the top of the this thread.

PS loads and before the image loads, the first screen says SETUP and auto fills old serial number with green check mark.

After it copies files it says, click Finish to close. Installed non-activation PS CS3 from desktop ( copied from USB stick as that computer never is connected to internet). ( Note, there were lots of Adobe artifacts in folders/registry after this cleaning. Photoshop was not deactivated and again uninstalled by windows. I deactivated Premier CS5/Encore and ran windows uninstall.
