Ensure you are logged into a user account with administrative privileges before starting the installation.
: Plug your AVerMedia A857 USB tuner into a USB 2.0 or 3.0 port. Open Device Manager , right-click , and select Device Manager in the left sidebar. Locate the Device : Look for "AVerMedia A857" or "Unknown Device" under Sound, video and game controllers Other devices Update Driver Right-click the device and select Update Driver Software Browse my computer for driver software and select the folder where you extracted the driver files. to finish the installation.
Using an incorrect driver variant can lead to system instability, "Device Not Recognized" errors in Windows Device Manager, or software crashes in your media center application. The 64-bit architecture of Windows 7 strictly requires 64-bit signed drivers; standard 32-bit (x86) drivers will not initialize. Step-by-Step Guide to Installing the Driver Driver Avermedia A857 Windows 7 64 Bits LINK
The is a legacy USB tuner designed for capturing high-definition digital TV signals, particularly popular in regions using the ISDB-T standard (such as Brazil and Japan). While many newer USB tuners have replaced it, the A857 remains a workhorse for many users on older systems.
AVerMedia A857 (often recognized as the AVerMedia USB Pure ISDB-Tb Ensure you are logged into a user account
: You can search for the model or use the AVerMedia Assist Central tool to automatically detect and download the correct drivers for your device.
To ensure you have the right driver, verify your device's Hardware ID in Device Manager. The A857 typically uses the following identifier: USB\VID_07CA&PID_A857 Locate the Device : Look for "AVerMedia A857"
Windows 7 (64-bit), Windows 8, and Windows 10
