Need help configuring WDM driver

Hi all, I have a 7900gt-vt2d256e, I downloaded and installed display drivers (v 93.71) for the vga card, rebooted, everything was fine, then I downloaded wdm capture drivers (v 4.13), after running the setup, it copied some files and asked for reboot, after reboot windows detected two new devices (nvidia wdm A/V crossbar & nvidia wdm video capture (universal) ). It started to search for drivers for both devices (as I selected: install the driver automatically) and installed the drivers for both. After installation, for nvidia wdm video capture I get a code 10 on device manager and hence I am unable to record analog video through s-video or composite. For nvidia wdm A/V crossbar there is no warning of any sort on the device manager. I've also tried removing the wdm driver using drivercleaner and reinstalling by clicking have disk and specifying the exact file but i get the same code 10, plz help.

I did install a mercury TV Tuner card, but then I disabled it in the hardware profiles, reinstalled the wdm drivers (removed them using drivercleaner),restarted my PC, but my problem wasn't resolved, then I removed the TV Tuner card completely and tried again but still I wasn't able to resolve the issue. Thanks for the quick reply anyway.

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