AVerMedia AVerTV Volar HD PRO A835 USB TV Card drivers were written up to Windows 8.1, however those drivers should install ok on Windows 10 and even Windows 11.
AVerMedia AVerTV Volar HD PRO A835 Driver
File: A835_AP6.5.2.13110601_Drv_8.2.x.65_140114.exe
1842843817856557e1adcbfc38e6ada81172729a91d6f0d3c9d64f18361c65ab