When Lync loads it generates a 6281 error in Event Log.

I am troubleshooting an Event Log error that I have traced to Lync.  When Lync does not start with windows the error is not present.  As soon as Lync.exe is executed the 6281 System Integrity

Code Integrity determined that the page hashes of an image file are not valid. The file could be improperly signed without page hashes or corrupt due to unauthorized modification. The invalid hashes could indicate a potential disk device error.

File Name:             \Device\HarddiskVolume1\Windows\System32\SensorsApi.dll 

On another computer same 6281 error but with the l3codeca.acm system file

If Lync is not running error does not show up in Event Log.  If sound card is disabled error does not show up in Event Log.  If Lync is running with sound card disabled error is gone.  If Lync is not running with sound card enabled error is gone.

Have tried drives, updates, uninstall/reinstall, turning options on/off, registry setting etc. none have worked

If you remote the sound card driver and use whatever comes with Windows, does the error go away?  Do you have sound still?

I would also check to see if there's an update for that sound card available.

Finally, I'd see if that DLL differs on any system, or if the file is identical.  Try overwriting it over from a similar working system.

Hello,

Error does go away if sound card is disabled.  Tried updating sound card Error still persists.  there are many dlls in the sound card driver and not sure which one to replace 

Sorry, I wasn't clear.  I was specifically referring to replacing the SensorsApi.dll that it's complaining about in the System32 directory.

Also, not disabling the sound card, but uninstalling the driver so the default drivers that come with Windows take over as a workaround.