It happened to me at the start.
I 'think' it's because we installed the wrong drivers for the firmware we're using.
Like I installed the wrong driver v2 at the start, worked for abit, rebooted then I get that 'failed to install' component thingy too no matter how many times I tried to remove or install a different version because it no longer appeared in my windows (I knew my firmware hasn't died because I haven't flashed it yet).
Email kingwa your model/serial number and ask him what firmware you're using and install the drivers that he tells you to. Mine was the v1.1 that was no longer on their website but was still downloadable by direct link.
Update the firmware and drivers to v2 afterwards.
I remember seeing svb-202d in windows when installing v1.1 drivers but 'audio-gd' for v1.2+ drivers.
I fixed my problem by system restoring but it seems like yours didn't even make it through the first install?
[size=small]the Firmware #7 want to install the driver V2.0 , [/size][size=small]http://www.audio-gd.com/AudiogdUSB32v2.0forwin.rar[/size]
[size=small]the Firmware #4 want to install the driver 1.22 , [/size][size=small]http://www.audio-gd.com/AudiogdUSB32ASIOv1.22forwin1220.rar[/size]
[size=small]the Firmware #3 and #5 want to install the driver 1.1 . [/size][size=small]http://www.audio-gd.com/Audio-gdUSB32forwindows384.rar[/size][size=small] [/size]