Ein Angebot des ISB
https://www.isb.bayern.de
https://www.isb.bayern.de
The driver for the AVerMedia A857 USB Pure ISDB-Tb Windows 7 64-bit
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
Since AVerMedia has moved many older products to "End of Service" status, the most reliable source for a Windows 7 64-bit driver is often through official OEM support pages like Lenovo or archived driver libraries. Lenovo Support : Offers a dedicated AVerMedia TV Tuner Driver for Windows 7 (64-bit)
which is compatible with many A857-based tuners found in laptops. AVerMedia Official Support : You can check the AVerMedia Download Center AVerMedia Assist Central
tool, which may automatically detect and install the correct legacy driver for your connected hardware. Alternative Download Mirrors
If the official manufacturer link does not work for your specific hardware ID, these driver database sites host verified versions of the A857 driver: DriverIdentifier Driver Avermedia A857 Windows 7 64 Bits LINK
: Provides specific versions for various OEM integrations (like Positivo laptops) with version 12.6.64.16 being common for Windows 7. You can find these on the AVerMedia A857 Driver Download Page DriverScape : Hosts the AVerMedia A857 USB Pure ISDB-Tb Drivers compatible with 64-bit systems. Internet Archive AVerTV Series Driver CD
is available for those needing the original software suite bundled with the hardware. Driver Scape Hardware Identification
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
Blog Title: Retro Revival: Installing the Avermedia A857 on Windows 7 64-bit (The Last Working Driver)
Posted by: TechRetro Labs Date: April 12, 2026 The driver for the AVerMedia A857 USB Pure
If you are still holding onto a classic Avermedia A857 PCI-E TV Tuner card—perhaps for capturing composite video from an old VCR, playing retro consoles, or watching analog TV via an RF signal—you have likely hit the infamous "Driver Wall."
Officially, Avermedia stopped supporting this card years ago. The CDs that shipped with the card only contain 32-bit drivers. If you try to install them on a modern (or even a legacy) Windows 7 64-bit machine, Windows will throw a frustrating error: “This driver is not signed” or “Driver not found.”
But don’t throw that card away yet. I have found the last known working driver package for Windows 7 64-bit.
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.
Yes, but only for specific use cases.
The Avermedia A857 delivers clean composite and S-Video capture with minimal latency. For converting old family VHS tapes or running a legacy CCTV DVR, it is still excellent.
However, if you build a new PC, do not use Windows 7. But if you already have a Windows 7 64-bit workhorse and a dusty A857 card, the driver LINK and instructions above will bring it back to life.
If you're unable to find a compatible driver, consider reaching out to Avermedia's customer support directly. They may have more specific advice or a newer driver available that wasn't listed on their website.
Once you have the exe or zip file, follow these instructions precisely. Windows 7 is picky about unsigned drivers, but this one is signed.
Works:
Does NOT work:
The A857 often passes audio via a 4-pin internal header or a separate line-in cable. Fix: Ensure your CD/DVD audio cable is connected from the A857 card to the "AUX" or "CD-IN" header on your motherboard. Then, in Windows 7 sound settings, set "Line In" or "AUX" to Listen to this device.