Kaspersky Error — Installing Driver Klim6sys X64 Upd

Right-click and select Delete . (Windows will safely rebuild this key automatically upon the next network change).

Execute the following string to manually terminate the old network filter service: sc delete klim6 Use code with caution.

Safe Mode cleanup + reboot + offline installer. kaspersky error installing driver klim6sys x64 upd

Fix: Kaspersky Error 27300 Installing Driver klim6.sys x64 The when installing a Kaspersky application usually occurs because the system fails to install the klim6.sys (x64) driver . This driver is the Kaspersky Anti-Virus NDIS Filter , which intercepts network packets for security scanning. Common causes include leftover files from previous installations, incompatible third-party drivers (like VMware or Cisco AnyConnect), or a corrupted Windows driver catalog. Quick Fixes

If you’re on or a recent Insider build, the driver may need an update from Kaspersky. Contact Kaspersky Support and request the latest klim6.sys compatible with your Windows build . Right-click and select Delete

Windows enforces a maximum limit on the number of network filter drivers (usually 8 or 14). Virtualization software like VMware or VPN tools like Cisco AnyConnect consume these slots.

(often used by network monitoring tools like Wireshark) Other third-party VPN clients or firewalls. Step 2: Use the Official Kaspersky Removal Tool Safe Mode cleanup + reboot + offline installer

The error occurs when the Kaspersky installer fails to set up a crucial system file called klim6.sys (often shown as klim6.sys_x64 during installation). This file is formally known as the and is a core component of the antivirus software.

To diagnose this, you can run the built-in Windows System File Checker: Open the menu, type cmd . Right-click Command Prompt and select Run as administrator . Type sfc /scannow and press Enter .

Temporarily uninstall or update applications like , Cisco AnyConnect , or WinPcap (NPF) .