Immediately received immediately returned. Indeed, as all key AVerMedia TV, none running Windows 7 SP1 64-bit. I owned before Volar Red + that worked fine before the upgrade to SP1. Despite several phone contacts with the manufacturer (with exotic countries interlocutors who do not understand all need what we want), downloading a bunch of updates and drivers, nothing worked. So I decided to put it in the closet. 15 months after I left tempted by saying-this key is compatible with Windows 7. Big mistake !!! In addition I have never managed to install the AVerTV software despite three hours of effort. In terms of saying-or updates on the manufacturer's website, same as above, bugs prevent the completion of the installation. In short, it is still unusual that a manufacturer sells this type of equipment when he knows that it will not work with all environments or at least he clearly saw announces he is unable to produce a driver worthy of the name. With AVerMedia is worse than the days of Windows 3.11 where you had to type in DOS command lines to install hardware. I recognize that even when the gear is installed without issue on Windows XP (but I did not want to watch TV on an old desktop computer). Fortunately it has been purchased on Amazon !!!