Kaspersky Error 27300 Klif.sys-x64 __link__ Jun 2026

If you have other security software installed, try disabling or uninstalling them, as they may be conflicting with Kaspersky antivirus.

Error is a common installation failure encountered when deploying or updating Kaspersky security software . It typically signifies a driver installation error related to the klif.sys-x64 file, which is Kaspersky's core infrastructure driver . The error prevents the installer from successfully adding the necessary driver to the system's network adapter or file system. Root Cause Analysis kaspersky error 27300 klif.sys-x64

In this long-form guide, we will explore what error 27300 means, why the klif.sys-x64 driver is critical, what causes the problem, and how to fix it step-by-step on Windows 10 and Windows 11 (64-bit systems). If you have other security software installed, try