The with the driver file klif.sys-x64 is a critical installation failure that occurs when the security suite's installer fails to correctly integrate its low-level kernel interceptor driver into a 64-bit Windows operating system. This issue prevents Kaspersky home applications, Kaspersky Small Office Security , and Kaspersky Endpoint Security for Windows (KESW) from establishing essential deep-system protection. 🔍 Understanding the Core Causes
Which (e.g., Windows 10, Windows 11) you are running.
Windows sometimes uses a cached version of driver information that is incorrect. Clearing the Infcache can force Windows to re-evaluate the Kaspersky driver. Navigate to C:\Windows\System32\DriverStore . Look for a file named infcache.1 . kaspersky error 27300 klif.sys-x64
Reboot your computer normally and attempt the installation again. Step 2: Repair the Base Filtering Engine (BFE)
Select your product from the list and let it clean all traces. The with the driver file klif
Leftover temporary installation files can cause conflict parameters during the setup wizard execution. Press to open the Run dialog box. Type %temp% and press Enter .
Select the Kaspersky product you are trying to install from the dropdown menu. Click and wait for the process to complete. Windows sometimes uses a cached version of driver
This error can prevent you from installing, removing, or properly running Kaspersky products. It can also trigger system instability, blue screens, or failure of real-time protection. The good news is that this error is well-documented, and solutions exist—from simple driver fixes to advanced system modifications.
The OS is low on resources or requires a reboot.