New
#1
No Audio device - Code 52 - can't find a driver that works 64bit
PC shows no audio device in system tray, Device Manager shows two devices with yellow explanation marks - Code 52 error. Driver details shows default Microsoft drivers in use. Various driver installs attempted. Machine updated from Vista.
"Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)"
Hardware IDs
HDAUDIO\FUNC_01&VEN_1106&DEV_E721&SUBSYS_10438345&REV_1001
HDAUDIO\FUNC_01&VEN_10DE&DEV_0067&SUBSYS_00670000&REV_1000
one will be the mobo sound, the other the HDMI sound output (onboard graphics / HDMI capability)
Have tried the F8 boot option to ignore certificate signing, was no help.