: Offers multiple versions including the USB Pure ISDB-Tb specific variant. Driver Scape Download Page Key Technical Specifications Driver Version : Commonly 12.6.64.16 or 12.6.0.2 . Hardware ID : Often identified as USB\VID_07ca&PID_a857 .
Finding the correct driver for legacy hardware can be a frustrating challenge. The AVerMedia A857, also known as the AVerTV Volar HD Nano (A857), is a compact USB TV tuner that allows users to watch high-definition digital television on their computers.
Right-click the device and select Update Driver Software .
Connect the tuner directly to a rear USB port on the motherboard rather than a front-panel port or an unpowered USB hub.
Do not use random "driver updater" software. Instead, use the archived official driver from a reputable source: Driver Avermedia A857 Windows 7 64 Bits LINK
Plug the AVerMedia A857 USB device into a functional USB 2.0 or USB 3.0 port. The system should now recognize the device automatically.
Locate the device, which will likely appear under "Other Devices" with a yellow exclamation mark (e.g., "Unknown Device" or "AVerMedia A857"). Right-click the device and select . Choose "Browse my computer for driver software" .
is no longer actively supported by the original manufacturer, but it can still be sourced through official laptop manufacturer archives and driver databases. Official & Manufacturer Links
: One of the latest released versions for this hardware ID, compatible with x64 architectures Treexy Database Manual Installation Steps : Offers multiple versions including the USB Pure
| Problem | Solution | | :--- | :--- | | | You forgot Step 2. Reboot into F8 > Disable Driver Signature Enforcement. Make this permanent via bcdedit /set testsigning on in CMD (Admin). | | Device shows but No Video | The A857 does not support HDCP. Disable HDCP on your source (e.g., game console or set-top box). | | Audio is missing | Go to Sound Settings > Recording Tab. Set “AVerMedia HD Capture Audio” as the Default Device. | | Blue screen (BSOD) on Windows 7 | You installed the 32-bit driver. Ensure you downloaded the 64-bit version. |
If the standard installer fails, you can force Windows 7 to recognize the device manually: Plug the A857 tuner into your PC.
Running a Windows 7 64-bit system requires the exact for the AVerMedia A857. Attempting to force an incompatible version can lead to: Device Manager errors (such as Code 10 or Code 43). System instability or Blue Screen of Death (BSOD) crashes.
Below are links to drivers sourced from driver databases that are compatible with the AVerMedia A857 chipset. Finding the correct driver for legacy hardware can
Navigate to the chosen download link above and download the driver package (usually version V1.0.64.9 or similar). Save the .zip or .exe file to your desktop.
The correct Driver Avermedia A857 Windows 7 64 Bits LINK is version 8.3.5.20 available via Guru3D or the Avermedia FTP archive. Disable driver signing via F8 before installing, and your legacy capture card will work like new.
Includes the device driver and the media player interface for scanning channels. Step-by-Step Installation Guide for Windows 7 (64-Bit)