Obtain the .zip or .cab driver package from a source above. Unpack: Extract the contents to a folder on your desktop. Open Device Manager: Click Start , type devmgmt.msc , and press Enter .
. Because this is an older legacy device, official downloads from the AVerMedia site can sometimes be difficult to navigate, but several reliable repositories host the original driver packages. Driver Download Links
, you generally need to use drivers provided by the laptop manufacturer or specialized driver repositories, as it is an older model. Direct Download Links Lenovo Support : You can download the official AVerMedia TV Tuner Driver for Windows 7 (64-bit) which was released as a recommended update. DriverScape : This repository offers a specific AVerMedia A857 USB Pure ISDB-Tb driver for Windows 7, 8.1, and 10. DriverIdentifier
To ensure you have the right match, the device should show the following ID in the "Details" tab: USB\VID_07CA&PID_A857 . Troubleshooting Tips
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