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KS.sys is a Windows base file that manages video recording and its drivers. It is part of Windows since Windows XP and continues under Windows 10. This gives us a good idea of where to start troubleshooting.


The SYSTEM_SERVICE_EXCEPTION (KS.SYS) error, followed by a blue death screen, indicates that the system has some kind of communication error with the drivers of your video camera. It is more likely to be seen by owners of HP systems with built-in webcams or by owners of HP webcams. It is usually triggered by an update to Skype, and the most frequently found update is an update to Skype 6.14.

Fix SYSTEM_SERVICE_EXCEPTION (ks.sys) error in Windows 10.

Update your drivers


If your video card driver is obsolete, you may experience this problem. The obvious solution in this case is to update the GPU drivers. If you are not sure how to proceed, follow the instructions below:

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Go to Search, enter devicemngr and open the Device Manager.
Deploy the display adapter.
Right-click on your video card and go to Update Drivers.

Install serious software and scan the system.

System errors such as BSOD SYSTEM_SERVICE_EXCEPTION (KS.SYS) very often indicate that your system needs to be optimized. There may be problems with registration, startup, caching, caching, etc. Therefore, you should first try to install and run a professional optimization tool.

Back to the old version of Skype

skype update

As this problem is often caused by an incorrect Skype update, it would make sense to go back to the old version you used without the problems.

First, you must uninstall the currently used version. The best way to do this is to open Add/Remove Programs in the Control Panel. Press Start, enter the Control Panel and open the result. Set the view in the upper right corner to large or small icons and open Programs or Add/Remove Programs and Functions, depending on your Windows version. In the list of programs, find Skype, click it and then click Uninstall. Follow the wizard to remove Skype. At the end, restart your device to delete the remaining files.

Turn off/ Disable your webcam


Sometimes, some hardware, like a webcam, even the one built into your monitor, can cause the SYSTEM_SERVICE_EXCEPTION error. If you receive the error SYSTEM_SERVICE_EXCEPTION (ks.sys), you can disable your webcam by following these instructions :

Open the Device Manager. Press Windows + X and select Device Manager from the list.
You must now find your webcam in the Device Manager, right-click and select Disable from the list.

We should mention that this problem may be caused by other hardware, so you may need to check a little before you find out which device is causing this error.

That’s all, we hope the methods listed above will help you solve your problem with the Blue Screen of Death error SYSTEM_SERVICE_EXCEPTION (KS.SYS). Please let us know in the comment field below if this has helped you in any way.

RECOMMENDED: Click here to troubleshoot Windows errors and optimize system performance