from Tom's hardware (http://www.tomshardware.com/faq/id-3128612/fix-windows-system-service-exception-sys-error.html)


KS.sys is a Windows core file that manages video capture and the associated drivers. It has been a part of Windows since Windows XP and continues into Windows 10. This gives us a good idea of where to start in our troubleshooting.


  1. Navigate to Settings, Update & security, Windows Update.
  2. Click ‘Check for updates’ and allow the process to complete.
  3. Reboot if necessary.
  4. Navigate to Control Panel, Hardware and Sound, Device Manager.
  5. Click Sound, video and game controllers right click and select ‘Update Driver Software’.
  6. Select any webcam you have, right click and select ‘Update Driver Software’.
  7. Reboot and retest.


If the error reappears, update all your drivers, especially graphics. If the problem persists after driver updates, try removing your security software. Just remember to replace it with a newer or alternative version once you have completed troubleshooting.