Swift SF114-34

S/N: NXA9UEK0083030138D2N00

I think my Avast security has uninstalled the sound drivers but I'm not 100% sure (& if it has, I don't know why) - I just know they're gone.

I downloaded both the Realtek and intelligo sound drives from the Acer website as I wasn't sure which one to use & ran "Setup_APP" on them both but I'm unsure what to do next? I've tried running "Install_UWP" on both & get the same error code each time - "ERROR Driver UWP Install process failed with ERROR code 740"

Can anyone help me with next steps please? I'm completely clueless.