I recently bought a licensed copy of Photoshop CS6 to replace a old CS3 on a Windows 10 PC. Activation went OK, the software runs fine. The only problem is when I want to work on a PSD file, Windows systematically tries to open it with the old CS3, which doesn't run anymore. I changed the "Opens with" parameter in the files properties, it immediately reverts to CS3. I also tried unistalling the old CS3, that doesn't work either. Can you please help me out?
I recently bought a licensed copy of Photoshop CS6
Adobe hasn't sold CS6 since Jan 2017. So you either bought pirated software or you're using a used version from an auction site. Unless you and the seller completed an official transfer of license form to Adobe, I'm afraid you don't even own the license to whatever it is you purchased.
Sorry to say, this sounds like a scam. I hope for your sake it doesn't contain malware.
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Nancy O'Shea, Adobe Product User & Community Professional Alt-Web Design & Publishing ~ Web : Print : Graphics : Media