A857 Windows 7 64 Bits Link — Driver Avermedia
How to Install the AVerMedia A857 Driver for Windows 7 (64-bit) If you own the AVerMedia A857 TV tuner/capture device and need a working driver for Windows 7 64-bit, this short guide walks you through where to find the correct driver, how to install it, and troubleshooting tips to get your device working reliably. What you need
AVerMedia A857 device and its USB cable. A Windows 7 64-bit PC with an available USB port. Administrator rights on the PC. The correct driver package for the A857 (64-bit).
Where to get the driver AVerMedia’s official support site is the safest place to download drivers. Look for model A857 and select drivers compatible with Windows 7 64-bit. If an official Windows 7 driver is not listed, use the most recent driver AVerMedia provides for similar A8xx models but confirm it lists Windows 7 x64 compatibility before installing. (If the official AVerMedia page is unavailable or the model is discontinued, reputable driver-archive sites or the manufacturer’s FTP mirror are alternatives — verify file checksums and avoid sites that bundle unwanted software.) Installation steps
Download the A857 driver package for Windows 7 64-bit and save it to an easy-to-find folder. Right-click the downloaded ZIP or installer and choose “Extract All…” if zipped. If the package contains a Setup.exe, right‑click it and choose “Run as administrator.” Follow on-screen prompts and reboot when prompted. If there’s no installer and only INF files: Driver Avermedia A857 Windows 7 64 Bits LINK
Connect the A857 to your PC. Windows may try to install a driver automatically and fail. Open Device Manager (Start → type “Device Manager”). Find the device under “Other devices” or “Unknown devices,” right‑click it and choose “Update Driver Software…” Choose “Browse my computer for driver software,” point to the folder containing the extracted INF files, and click Next. Complete installation and reboot if required.
Common issues & fixes
Device shows as “Unknown” or with a yellow warning icon: How to Install the AVerMedia A857 Driver for
Reinstall driver using Device Manager; ensure you selected the correct driver folder. Try a different USB port (preferably a USB 2.0 port if available). Disable driver signature enforcement temporarily if the driver is unsigned (Advanced boot options → Disable driver signature enforcement), then reinstall.
Driver installer fails or crashes:
Run installer in Windows 7 compatibility mode (right‑click → Properties → Compatibility → Run this program in compatibility mode for: Windows 7). Temporarily disable antivirus software during installation. Administrator rights on the PC
Poor reception or capture problems:
Update any bundled capture software or try alternate capture applications (e.g., VLC, MediaPortal) that support your device. Check antenna and cabling; try a different coax cable or antenna position.


