Having issues with Windows Update. sfc /scannow found uncorrectable issues and sfcfix found this:
SFCFix version 2.4.3.0 by niemiro.
Start time: 2015-03-15 23:10:20.558
Microsoft Windows 8.1 Update 3 - amd64
Not using a script file.
AutoAnalysis::
CORRUPT: C:\Windows\winsxs\amd64_microsoft-windows-com-dtc-runtime_31bf3856ad364e35_6.3.9600.16384_none_0a1162f033fa01f6\MSDTC.LOG
SUMMARY: Some corruptions could not be fixed automatically. Seek advice from helper or sysnative.com.
CBS & SFC total detected corruption count: 1
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 2.4.3.0 by niemiro has completed.
Currently storing 0 datablocks.
Finish time: 2015-03-15 23:25:19.666
----------------------EOF-----------------------
SFCFix version 2.4.3.0 by niemiro.
Start time: 2015-03-15 23:10:20.558
Microsoft Windows 8.1 Update 3 - amd64
Not using a script file.
AutoAnalysis::
CORRUPT: C:\Windows\winsxs\amd64_microsoft-windows-com-dtc-runtime_31bf3856ad364e35_6.3.9600.16384_none_0a1162f033fa01f6\MSDTC.LOG
SUMMARY: Some corruptions could not be fixed automatically. Seek advice from helper or sysnative.com.
CBS & SFC total detected corruption count: 1
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 2.4.3.0 by niemiro has completed.
Currently storing 0 datablocks.
Finish time: 2015-03-15 23:25:19.666
----------------------EOF-----------------------