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This error is a fascinating example of "security vs. security." Windows is trying to secure the kernel using Core Isolation, and Kaspersky is trying to secure the kernel using its own driver ( klif.sys ). Error 27300 is the system flagging a "double-booking" of the security layer.
: Surprisingly, this error often triggers if no physical keyboard is connected to the computer or server during installation. Kaspersky Support recommends connecting one before retrying. kaspersky error 27300 klif.sys-x64
Corruption in the operating system's cryptographic services or system files can prevent driver installation. This error is a fascinating example of "security vs
. This driver is essential for low-level system monitoring and malware interception. Core Root Causes : Surprisingly, this error often triggers if no
The (Kaspersky Log Inspection Filter) file is a vital kernel-mode driver used by Kaspersky applications for real-time protection, such as monitoring file system activity and blocking rootkits. The "x64" suffix indicates it is the 64-bit version of this driver. When Error 27300 occurs, the Windows installer is unable to correctly register this driver into the system's driver stack. Common Causes of Error 27300
Technical Incident Report: Kaspersky Error 27300 (klif.sys-x64)
