I previously downloaded a copy of Photoshop CS6 off TPB, but somebody else has the serial number I used, and I can't open the application. I need to know how to deactivate my computer so I can download a trial version from the website. If anybody could help me it'd be brilliant.
Also, I can't open the program because when I do, it comes up with a box saying "The serial number 12345678987654321 is already in use by the maximum allowed computers. You must deactivate another computer or provide another valid serial number to use Photoshop CS6 Extended again on this computer." I need to know how to deactivate it without having to open the application, and uninstalling it doesn't deactivate it.
Contact support by phone or web chat to sort out your serial and activation issues. Nobody here can do anything in such matters.