This same thing happened to me with PowerDVD 13. I put in a Resolution Request explaining exactly as you'll did what occurred. The respondent pretended as though this was a new issue they had never heard of and asked me to send a screenshot of the "error" message. This is clearly not an "error message", as it has been programmed by the company and at the bottom of the message, it prompts me to upgrade to PowerDVD 16. This is simply unethical business practice. Nowhere, at anytime, does Cyberlink inform it's customers of the existence of installation limitations, hoping to give the impression that there are none. Then, when you refuse to upgrade to the newer versions, they wait for you to need to reinstall and simply block your ability to activate it. This leads to a long and stressful interaction with customer service that treats the issue as if they have no idea why it is happening, pretending to do some sort of "work" to figure out how to fix it. This is a common technique that ultimately increases the likelihood that you will just get desperate enough to watch a DVD/Bluray and refuse to settle for a lesser program and just pay the upgrade fee for the newest version. This company invested in a business model that requires us to buy updates to continue being profitable. Unfortunately, they invested in a technology that hasn't evolved (thus their is no evolution in their product) and are in an unfortunate position because premium 4K content creators don't want to support PC in an effort to protect their content. This prevents this company from genuinely offering any new features that users want, thus removing our need to update. This company is fully aware of exactly when, where and how you purchased your product from them, so the idea of providing proof of purchase is ridiculous. This company chooses to not inform its customers of activation limits, or create a system to manage installations, as every modern internet based subscription service would. This company is a subscription service masquerading as a one that offers "buy-once-and-your-done" products (as they have in the past).