Error 27300 Error Installing Driver Klim6sysx64 Exclusive Verified ✪
Open regedit and navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network . Find the parameter and rename it to Config2 . Restart and attempt the install again.
The file is Kaspersky 's proprietary Anti-Virus NDIS Filter driver, which manages network interception, firewall configurations, and web traffic filtering. When Windows marks this driver installation as "exclusive" or blocked, it means a conflict in the Network Operating System layer or a corrupted cryptographic repository is stopping the driver registration. Root Causes of Error 27300
) is a known issue occurring during the installation or upgrade of
Go to the menu at the top and select Show hidden devices . Expand Non-Plug and Play Drivers (or Network Adapters ). Look for klim6 or Kaspersky Anti-Virus NDIS Filter . error 27300 error installing driver klim6sysx64 exclusive
If the error persists after executing these steps, your system might have an irreversible NDIS stack breakdown. In this specific scenario, executing a or installing a freshly updated version of the installer package directly from the developer is recommended.
Download the official tool from the Kaspersky kavremover page. Reboot your PC into . Right-click kavremover.exe and select Run as Administrator .
: Traces of older Kaspersky builds or previous security tools (like Sophos, McAfee, or Norton) block the path. The file is Kaspersky 's proprietary Anti-Virus NDIS
To resolve the Error 27300, follow these troubleshooting steps:
This comprehensive troubleshooting guide breaks down the core causes of this error and provides a sequence of actionable solutions to resolve the issue entirely. Why Does Error 27300 Occur?
The error is often triggered by remnants of previous security software or conflicts within the Windows networking stack: Leftover Drivers : Uninstalled antivirus programs (like Expand Non-Plug and Play Drivers (or Network Adapters )
If you are trying to install or update Kaspersky security software and hit , you aren't alone. This specific error typically points to a conflict with the Kaspersky Anti-Virus NDIS Filter driver. It essentially means the installer failed to register the network driver, often because a previous version is "stuck" or the Windows network stack is corrupted.
The Windows Network Setup Service must be active for driver registration: Press Win + R , type services.msc , and press Enter . Locate Network Setup Service . Ensure the "Startup type" is set to Manual or Automatic .
Execute the following command to completely delete the locked service footprint: sc delete klim6 Use code with caution.
klim6sysx64.sys is identified as a kernel driver component (part of their endpoint security suite). The error commonly occurs during installation, update, or uninstallation of Kaspersky products, or when a conflicting security driver (another antivirus) is already active.