Kaspersky Error Installing Driver Klim6sys X64 Upd May 2026

Install latest Kaspersky version — download fresh installer from Kaspersky and use the Full/Remover tool to clean previous remnants first.

Remove leftover Kaspersky drivers/services

Check system files & Windows updates

Verify file integrity & permissions

Check Event Viewer and SetupAPI logs

Common error codes and fixes

Test in Clean Boot

Contact Kaspersky support

Sometimes, a simple reboot can resolve the issue. Restart your system and try installing the driver again.

If the installer fails at driver loading, you can attempt to manually pre-install the driver:

The file klim6.sys is a Kernel-Level Internet Monitor driver. It is a critical component used by Kaspersky applications to filter network traffic (incoming and outgoing data packets) at the system kernel level.

sfc /scannow
DISM /Online /Cleanup-Image /RestoreHealth

If nothing works, the Windows driver store may be irreparably corrupted. An in-place upgrade (repair install) fixes this without deleting your apps.

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