Solved: U310 Touch: Audio not working after Windows 8.1 Update

Facebook video calling / chat does not work after windows...

Fix Audio Not Working After Windows 8.1 Update

Windows update not working - Windows 8 and Windows 8.1 | Forum

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After Windows 8.1 update, sound not working - Microsoft Community

Solved: Audio Not Working After Windows 8.1 Update - HP Support...

[FIX] Modern Apps Not Working After Upgrading To Windows 8.1

Fix: DVD Player not Working After Windows 8.1 Upgrade

Solved Sound Card not working after Windows 8.1 Windows updates.