Its the VT2021 according to the mobo spec. I had checked under control panel -> sound -> recording, and it just says 'No audio devices installed'. Tried the mic at the rear jack plug as well as the front (where I normally have it plugged in). Sods law the similar Z77 D3SH has a Realtek chipset and that one DOES have a Win10 driver. Been wondering if another mobo manufacturer might have used the same VIA chipset and made a Win10 driver i could use, unless its down to VIA, who I have also contacted (waiting for a reply),