by Alice Woods - -



I use a laptop for several years and was stick to Windows 8 up till now. My friend recommended upgrading it to Windows 10, which I found a great idea. However, the update doesn’t run for me right. After that, programs like Skype don’t work resulting in blue screen of death saying SYSTEM_SERVICE_EXCEPTION (KS.SYS). I’ve tried fixes I can think of, but nothing worked. It seems that I need the help of professionals. Do you have an idea? I would appreciate any help!

Solved Answer


SYSTEM_SERVICE_EXCEPTION (KS.SYS) is a Windows’ kernel CSA library file, which is directly related to a video camera. This kind of error, in particular, occurs on the laptops with the integrated webcams and HP systems. SYSTEM_SERVICE_EXCEPTION (KS.SYS) has emerged a couple of years ago but hasn’t been solved yet. Although there are not so many users who have this issue, we’ve received several reports, which is a signal that it might be getting more frequent due to Windows system changes. The vast majority of BSOD errors that come to the daylight these days are related to Windows 10 Updates, but SYSTEM_SERVICE_EXCEPTION (KS.SYS) error is not that kind. Usually, it starts emerging right after upgrading Skype (6.14 version in particular). For some reason, the update causes incompatibility between the system and video camera’s drivers.Luckily, it’s easy to fix this error by following the instructions given down below.


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NOTE: It’s important to mention that SYSTEM_SERVICE_EXCEPTION (KS.SYS) file cannot be deleted or changed because it’s one of Window’s system components.

Solution 1
Install reputable software and scan the system

Very often system errors like BSOD SYSTEM_SERVICE_EXCEPTION (KS.SYS) indicate that your system needs optimization. It might be that there are some problems with registries, startup, cache, and so on. Therefore, the first thing you should try is to install a professional optimization tool and run it. We would highly recommend using one of the following programs:

RegCure Pro
SpeedyPC Pro

Solution 2
Get back the previous Skype’s version

As we’ve already mentioned, this BSOD may be triggered by Skype update. Then it goes without saying that reverting to the previous version of Skype may help to fix SYSTEM_SERVICE_EXCEPTION (KS.SYS) error. For that, you have to:

  1. Click Start button (lower-left corner) – Control PanelAdd/Remove Programs  (Windows 7, XP).
  2. Right-Click on Windows icon (lower-left corner) – Control PanelUninstall a Program under Programs (Windows 8/10).
  3. Find the version of Skype that you are currently using, click on it, and select Uninstall.
  4. Reboot the device.
  5. We hope that you remember what the previous version of Skype was (probably Skype 6.14). If you do, look for its download on the Internet. Make sure that you download it from a reliable source and check if it’s not bundled with other third party software.  

Solution 3
Activate generic HP’s webcam driver

If the core of SYSTEM_SERVICE_EXCEPTION (KS.SYS) BSOD is HP’s webcam drives, then we recommend uninstalling the drivers and letting the system run the generic ones automatically.

  1. Click Start, type Device Manager in the search box, and hit Enter (Windows 7, XP).
  2. Right-click on Windows icon (bottom left corner) and select Device Manager (Windows 8/10).
  3. Find Imaging device on the list and expand it.
  4. Here locate HP’s device drivers, right-click on them and select Uninstall.
  5. After that, reboot the device.
  6. Now Windows system will automatically activate the generic drivers

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About the author

Alice Woods
Alice Woods - Shares the knowledge about computer protection

Alice Woods is a security expert who specializes in cyber threat investigation and analysis. Her mission on Ugetfix - to share the knowledge and help users to protect their computers from malicious programs.

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