If you are trying to install a Kaspersky security product and are hitting , you’re likely dealing with a conflict involving the Kaspersky Anti-Virus NDIS Filter driver. This error usually triggers a rollback, preventing the installation from completing.
Right-click your active connection (Wi-Fi or Ethernet) and select . error 27300 error installing driver klim6sysx64 exclusive
Sometimes the "klim6" driver is stuck to a specific network adapter. Right-click the button and select Device Manager . Expand Network adapters . If you are trying to install a Kaspersky
If the error persists, ensure that you have and that no other third-party firewall or antivirus (like McAfee or Norton) is currently active. These often "lock" the network stack, preventing the klim6 driver from installing exclusively. Sometimes the "klim6" driver is stuck to a
Select the product you were trying to install (or "All known products"). Click . Restart your computer and attempt the installation again. Solution 2: Increase the Network Filter Limit
The error code essentially means the installer cannot register the network filter driver because:
If "Kaspersky Anti-Virus NDIS Filter" appears in the list, select it and click . Solution 4: Reset the Network Stack