: Lenovo provides a stable, "Recommended" driver package for Windows 7 (both 32-bit and 64-bit), originally released for their bundled systems. Download from Lenovo Support
Look through the device tree. If the driver is missing, the tuner will appear under with a yellow exclamation mark, often labeled as Unknown Device or AVerMedia A857 . Step 3: Update the Driver Software Driver Avermedia A857 Windows 7 64 Bits LINK
This article provides the necessary information, links, and troubleshooting steps to install the . : Lenovo provides a stable, "Recommended" driver package