I got a message saying I needed to Activate H264 by purchasing an Activation Key. I see there's been a problem with Windows 8.1 and pinnacle but all the help topics. Ca8d075f12 d59d2a000dcb21deeb04fbf62e5d0e531486ba12 3.87 KiB (3965 Bytes) All the Activation Keys for Pinnacle Studio 11Įnjoy! I just bought a new computer that came with Windows 8.1 and bought Studio 16 to install on it but it won't install.