: Applications that utilize deep virtualization bridges—such as VMware Workstation, Cisco AnyConnect, or WinPcap—can lock down or corrupt network adapters.

Another program is blocking the driver installation.

Here are the most effective methods to fix this error, ordered from simplest to most advanced. 1. Use the Kaspersky Removal Tool (Kavremover)

Follow these methods in order, testing the installer after completing each stage. 1. Perform a Deep Clean with Kavremover

Double-click MaxFilters , switch the base to , and set the value data to 14 . Click OK and close the Registry Editor. 4. Reinstall Overlapping Virtual Network Software

Sometimes the system holds onto the old driver, preventing the new one from replacing it. Navigate to C:\Windows\System32\drivers . Locate klim6.sys . Right-click it and it to klim6.sys.old .

If Windows cannot verify the digital signature of the incoming driver package, it will drop the setup process entirely to safeguard the kernel.

Only proceed if you have confirmed the source is safe and the driver is required for some niche hardware:

Before attempting a fresh install, ensure all traces of previous security software are gone. Use the Kavremover Tool : Download and run the official Kaspersky removal tool (kavremover) to purge all hidden files and registry keys. Remove Third-Party Antivirus

Type the following command and press Enter to remove the driver: sc delete klim6 Restart your computer. Attempt to install Kaspersky again. Method 3: Disable Driver Signature Enforcement

Type the following command and press Enter to stop the driver service: sc stop klim6

typically occurs during the installation of Kaspersky software when the system fails to install the klim6.sys driver , which acts as a packet network filter. This failure is often caused by leftover drivers from previous security software, corrupted system files, or conflicts with other network-filtering applications like VMware or Cisco AnyConnect. Common Causes

Minimal UX flow:

For real hardware (mouse, keyboard, GPU, chipset, etc.), always download drivers from the – not from pop‑up prompts, “driver updater” tools, or third‑party download sites.

Try these solutions in order. The first method resolves the issue for 90% of users.

Boot your computer into to prevent third-party applications or locked drivers from interfering. Right-click kavremover.exe and select Run as Administrator .