I do not know how to assist you with your problem. ... View more

OS WIN 7 (64) I purchased Adobe Acrobat XI Pro in August 2014. Over time, I've upgraded HDD and simply reinstalled the aforementioned software without difficulty, until a few days ago. I've also received updates from Adobe. All is fine until I re-enter the Serial Code after logging in with my Adobe ID. After entering the last four numbers and on the same screen, the following appears: "This serial number has been revoked. Contact the vendor from where it was purchased." Unfortunately, I don't remember the vendor. But why would this happen now, unless-perhaps-Adobe is pushing Acrobat Pro DC. The Acrobat XI Pro installed on my machine and each time I open a pdf, a pop-up which I've attached to this reply, states: "Hello, Acrobat DC "Thanks for trying Acrobat XI . Now completely re-imagined, Adobe Pro DC is here." Of course adobe wants me to buy this. I hope this is useful information. Thank you for your attention to this matter. ... View more

Thank you for your reply. I've had the software since 2014/15 and have never had any issues when reinstalling. In addition I've received updates for all Adobe products. Does this information help? Sent from Outlook Mobile<https://aka.ms/blhgte> ... View more