I installed this on a Windows 7 64 bit system. After disabling the onboard audio everything worked fine. 2 Days later I started up my system and everything still worked fine, then I did a Windows update for critical updates. After that, I have no audio now. No meters peaks or respond at all on the Delta systray icon. I did a system restore and repaired the latest Delta 66 audio driver and still nothing. PLEASE HELP!!!!

Was your machine working fine? If so, WHY did you do an update? Updates are never a guarantee and fraught with many issues - U only update when there is a valid reason and it is absolutely necessary - then you cross your fingers and risk it!

U have learned the hard way and now all you can do is attempt to undue what you did. U can try a system repair of your OS since the system restore did not do the trick. And if the repair does not work, and you do not have a backup of your drive, you will have to wipe the drive and reload everything. Have fun and good luck!