PS what i was after is the ever returning occasional audio stuttering, and i found this regedit fix for AMD radeon GPU cards, and it a similar tweak also seems to work for NVDIA cards. Testing it now:

Quote:
Performance Tip for AMD GPU users for stutter/lag

Microstuttering and laggy playback is an all-too-known issue with any gaming system, and some good people on the net have come up with a possible issue with AMD installs:

AMD installs a service to write to the Event Log called ATIeRecord. If your event logs are huge and/or fragmented, then this service will record while you are gaming, and the recording lag from bad fragmented system files will hammer your performance with lags and stutters.

The fix?

Disable the service.

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Atierecord]
"eRecordEnable"=dword:00000000

Set to "1" by default which enables it. Disable it by setting it to "0" ................