occurring when the installer cannot properly register the network filter driver klim6.sys_x64
How to Fix Kaspersky Error 27300: Driver klim6.sys_x64 Installation Failed error 27300 error installing driver klim6sysx64 exclusive
A: No. It is a legitimate Windows installer error. However, some malware uses driver names similar to klim6 to hide. Always download Kaspersky from the official website. occurring when the installer cannot properly register the
The most common causes for this specific failure are: Always download Kaspersky from the official website
: In some cases, other VPNs or firewall software with their own NDIS filters (like OpenVPN or Cisco AnyConnect) can cause "exclusive" access errors. Try temporarily disabling or uninstalling these before the Kaspersky setup. Technical Summary Error Code (Kaspersky Lab Interceptor and Masker) Primary Target Windows 10 / Windows Server Resolved in latest builds (March 2025) Are you seeing this error on a personal PC remote server
Download Process Monitor (ProcMon) from Microsoft Sysinternals. Step 2: Run it as Administrator. Step 3: Stop the capture (Ctrl+E), then clear the log (Ctrl+X). Step 4: Add a filter: Path → contains → klim6 → Include . Step 5: Start the capture (Ctrl+E) and run your Kaspersky installer until the error appears. Step 6: Stop the capture and look for entries with "Result: ACCESS DENIED" or "SHARING VIOLATION." Step 7: The "Process Name" column will tell you the culprit (e.g., MsMpEng.exe = Defender, csrss.exe = another security tool).
) is a known issue occurring during the installation or upgrade of