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How to eliminate kbfiltr driver problems

The kbfiltr.sys (Keyboard Filter driver) file is a Windows driver. Generally, drivers are used by Windows to enable internal components like graphic cards and drives, or external devices, such as printers, backup media or input devices.
Click here to check if you need to update your kbfiltr driver.

The kbfiltr.sys process is also known as Keyboard Filter Driver and is a part of Windows® Codename Longhorn DDK driver or, as the case may be, Keyboard Filter. This software is produced by Windows® Codename Longhorn DDK provider. An obsolete or defective version of kbfiltr.sys can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about kbfiltr.sys Keyboard Filter driver

kbfiltr.sys is not a Windows system file and is known to frequently cause computer problems. The file kbfiltr.sys is found in a subdirectory of "C:\Program Files". The file size is 7,168 bytes.
If necessary, you can manually stop or start this driver in the Device Manager. The Device Manager can be found in Windows Control Panel under Hardware and Sound/Devices and Printers/Device Manager. The driver facilitates access to your computer's hardware and accessories. This process does not have a visible window, and does not appear on the taskbar. There is no concrete documentation available for this service. The file does not come from Microsoft and is not part of the operating system. kbfiltr.sys appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files. For this reason, 40% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves kbfiltr.sys. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about kbfiltr?

short cut keys on keyboard, if you want them
John Flook
essential for using your extra keys on your laptop (multimedia and the like) (further information...)
Wannes Dobbelaere
Part of OSD application, keyboard shortcut display on netbooks
Martin Carpenter

Summary: 2 users judge kbfiltr.sys to be an essential file that should not be touched. For this reason, one user has already deleted kbfiltr.sys. source: file.net

How to uninstall Windows® Codename Longhorn DDK driver or Keyboard Filter

To remove Keyboard Filter driver from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate Windows® Codename Longhorn DDK driver or Keyboard Filter in the list of displayed applications.
  5. Click the program, and then click Uninstall.
Remove software in Windows 10
kbfiltr.sys Keyboard Filter driver fix

How to tell if kbfiltr.sys (Keyboard Filter driver) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of Keyboard Filter driver. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Keyboard Filter driver or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or kbfiltr.sys is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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