If Windows warns about driver signature verification, only proceed if you are 100% sure the INF and SYS files are from a trusted source (Microsoft or your OEM).

Locate your keyboard under . Right-click → Update driver → Browse my computer for drivers .

Because kbfiltr is part of the and Windows Driver Kit (WDK) samples, it is not available as a standalone download from Microsoft Update Catalog. Instead, you must obtain it through legitimate hardware drivers or Microsoft’s development tools.

Laptop brands like ASUS, Lenovo, and Clevo utilize custom keyboard filters for hotkeys and RGB control.

Even with the correct file, you may face issues. Here is how to solve them.

kbfiltr.inf is an INF file, which stands for Information File. It's a type of text file used by the Windows operating system to provide information to the operating system about a device driver. Specifically, kbfiltr.inf is related to keyboard filter drivers.

After installing the driver package, restart your PC. The kbfiltr.inf will be automatically copied to C:\Windows\INF and its corresponding kbfiltr.sys to C:\Windows\System32\drivers .

: The .inf file is a text-based setup file that tells Windows how to install the driver.

Some popular driver update tools include:

) to enable "Dritek HotKeys" or other proprietary laptop functions. Input Redirection