sfc corruption - please help

I ran sfc /scannow and have have corruption Only completed 44%

I ran sfcfix - fixed a few but still have corruption - sfc /scannow comlete at 100 %

Output of sfcfix.txt is as follows:



SFCFix version 2.3.0.0 by niemiro.
Start time: 2014-08-16 15:59:47.006
Not using a script file.


AutoAnalysis::
CORRUPT: C:\Windows\winsxs\x86_microsoft-windows-shell-sounds_31bf3856ad364e35_6.1.7600.16385_none_16e8d25616dd2c98\Windows Critical Stop.wav
CORRUPT: C:\Windows\winsxs\x86_microsoft-windows-wmpnss-service_31bf3856ad364e35_6.1.7601.17514_none_058e35be2cd5ba79\wmpnss_color48.png

SUMMARY: Some corruptions could not be fixed automatically. Seek advice from helper or sysnative.com.
CBS & SFC total detected corruption count: 21
CBS & SFC total unimportant corruption count: 0
CBS & SFC total fixed corruption count: 0
SURT total detected corruption count: 0
SURT total unimportant corruption count: 0
SURT total fixed corruption count: 0
AutoAnalysis:: directive completed successfully.


Successfully processed all directives.
SFCFix version 2.3.0.0 by niemiro has completed.
Currently storing 4 datablocks.
Finish time: 2014-08-16 16:01:09.515
Script hash:
----------------------EOF-----------------------

Please help