DPC latency seemingly caused by ATAPORT.SYS, possibly others - LatencyMon and CBS.log included

Been having DPC issues for a very long time now, with it sometimes being blamed on ATAPORT.sys or USBPORT.sys, or sometimes nvlddmkm.sys or dxgkrnl.sys

Here is a cbs.log which says there are some issues that were unable to be fixed - maybe related?

http://www.filedropper.com/cbs1

Here is the "conclusion" from LatencyMon

May 8th, 2015 2:15pm

AA

Did you run DISM?

Can we get your DMP files and event viewer logs?

Please run a system file check (SFC) & DISM if you are on win 8 or higher
All instructions are in our Wiki article below...
Should you have any questions please ask us.

System file check (SFC) Scan and Repair System Files

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 We do need the actual log files (called a DMP files) as they contain the only record of the sequence of events leading up to the crash, what drivers were loaded, and what was responsible.  

Please follow our instructions for finding and uploading the files we need to help you fix your computer. They can be found here If you have any questions about the procedure please ask

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Please provide us with your Event Viewer administrative logs by following these steps: Press the Win key + "R" and type eventvwr>enter Expand Custom Views
Click Administrative Events
Right click Administrative Events
Save all Events in Custom View As...
Save them in a folder where you will remember which folder and save as Errors.evtx
Go to where you saved Errors.evtx
Right click Errors.evtx -> send to -> compressed (zipped) folder
Upload the .zip file to Onedrive or a file sharing service and put a link to it in your next post * If you have updated to win 8.1 and you get the error message "the system cannot find the file specified" it is a known problem.  The work around is to edit the registry.  If you are not comfortable doing this DONT.  If you are, backup the key before you do Press Win+"R" and input regedit
Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WINEVT\Channels. Delete "Microsoft-Windows-DxpTaskRingtone/Analytic"



Free Windows Admin Tool Kit Click here and download it now
May 8th, 2015 4:26pm

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