If you are reading this because you plan to move to Windows 10 64-bit, stop. The official driver will not work on Windows 10 21H2 or newer. 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.
Fix: The A857 uses an older WDM (Windows Driver Model) framework. Use Windows 7 compatible software:
Step 1: Disable Driver Signature Enforcement (Temporarily) Even though the driver is signed, old SHA-1 signatures may be blocked by later Windows 7 updates. Driver Avermedia A857 Windows 7 64 Bits LINK
Step 2: Run the Installer
Step 3: Manual Driver Installation (If the EXE fails) If the installer says "No compatible hardware found": If you are reading this because you plan
Step 4: Reboot & Test
After digging through Russian driver forums and old FTP archives, the only stable 64-bit driver set that works with the Avermedia A857 (PCI-E, NTSC/PAL/SECAM) is a generic BDA (Broadcast Driver Architecture) pack. Step 2: Run the Installer
>>> DOWNLOAD LINK <<< Click here to download Avermedia A857 Win7 64-bit Drivers (Note: Replace this anchor with your actual file link, e.g., your Google Drive or Dropbox URL)
File details:
Even with the correct LINK, you may encounter problems. Here is how to fix them.
Fix: You likely have the 32-bit driver. Double-check that you downloaded the file containing x64 in the name. If you have a rare PCIe version of the A857, look for v1.0.0.21.