is a media hardware device primarily used for (Integrated Services Digital Broadcasting-Terrestrial) signals.
Because these drivers are not officially WHQL signed for 64-bit Windows, you must disable Driver Signature Enforcement temporarily. Follow these steps precisely: Driver Avermedia A857 Windows 7 64 Bits LINK
Look for the driver version explicitly matching Windows 7, Windows 8, or Windows 10 (64-bit drivers designed for Windows 8 or 10 often share architecture compatibility with Windows 7 64-bit). is a media hardware device primarily used for
Because Windows 7 is an older operating system, many manufacturers have removed direct downloads for these drivers from their main pages, or they are hidden inside larger "SDK" or "Beta" packages. Driver Avermedia A857 Windows 7 64 Bits LINK
What or code do you see in Device Manager?