IRQ conflict or corrupted registry. Fix: Move the card to a different PCI slot. On motherboards with multiple x16 slots, avoid the primary GPU slot.
Finding a safe is a journey through the graveyard of legacy computing. Avoid the malware traps, use the manual installation method, and enjoy your analog video capture workflow. Driver Avermedia A857 Windows 7 64 Bits LINK
A: Possibly with legacy VFW support, but you will get blue screens (BSOD) on modern hardware. Not recommended. IRQ conflict or corrupted registry
If you can't find the drivers on the official website or prefer a more straightforward solution, you can try a reputable driver download site. However, exercise caution and only use well-known sites to avoid malware. use the manual installation method