Use a file archiver like 7-Zip or WinRAR to extract the contents of the .cab file into a new folder on your desktop.
If you are reading this because you plan to move to Windows 10 64-bit, stop. The Avermedia A857 is hardware-locked to Windows 7/8. For modern systems, consider the Avermedia Live Gamer HD 2 (GC570) or a USB capture device.
Enter A857 or Volar HD Nano into the search bar to access the 64-bit Windows 7 package. 2. AVerTV Application Suite (Optional)
Windows 7 64-bit enforces strict driver signing rules. If your installer fails, restart your PC, press F8 repeatedly before the Windows logo appears, and select Disable Driver Signature Enforcement . Then try the installation process again. Tuner Not Detecting Channels: The
: Choose "Browse my computer for driver software" and navigate to the folder where you extracted the downloaded files. : Ensure the Include subfolders box is checked and click Next to finish the installation. Technical Specifications Hardware ID USB\VID_07CA&PID_A857 USB\VID_07CA&PID_0857 Compatibility Driver Avermedia A857 Windows 7 64 Bits LINK
If you own an AVerMedia A857 USB Pure ISDB-Tb TV tuner (often bundled with Positivo laptops, model C14CR21TV) and are looking to get it working on a 64-bit Windows 7 machine, finding the correct driver is crucial.
Once the installer finishes, plug in the A857. Windows 7 should show a notification: "Installing device driver software" followed by "Your device is ready to use." Troubleshooting Common Issues
If the driver fails to install or the device isn't recognized, try these solutions:
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Use a file archiver like 7-Zip or WinRAR
utility can automatically match your hardware ID ( USB\VID_07ca&PID_a857 ) to the correct software patch. The
https://drive.google.com/drive/folders/ + (search for "Avermedia A857 Windows 7 64-bit" on Reddit's r/avermedia for a shared backup link – direct public links expire)
Download the compressed ZIP file or the .exe installer executable to a local folder (e.g., your Downloads folder). Step 2: Prepare the Hardware
When the installer prompts you to connect the device, plug the AVerMedia A857 into a USB 2.0 port. For modern systems, consider the Avermedia Live Gamer
While the device was highly successful during the Windows 7 era, AVerMedia has since transitioned support to newer hardware. Consequently, finding official, untampered drivers requires navigating legacy software archives or utilizing specific compatibility workarounds. Why the Correct 64-Bit Driver Matters
Locating a functional requires navigating a graveyard of dead links and dubious aggregators. However, the hardware is not dead. By relying on the Microsoft Update Catalog or the verified Google Drive link from the manufacturer's FAQ, and by following a careful manual installation process, you can restore full functionality to your TV tuner. While modern capture cards have moved on, the AVerMedia A857 remains a testament to older tech that, with the right digital key, can continue to run for years to come.
If your system fails to recognize the TV tuner after following the installation steps, try the following troubleshooting measures:
Method B: Manual Installation via Device Manager (for .zip or .cab files)