Kaspersky Error 27300 Klif.sys-x64 Jun 2026

If you are reading this, you’ve likely just tried to install or update Kaspersky Endpoint Security or Kaspersky Internet Security, only to be met with a frustrating red box containing:

: Failures in Windows Cryptographic Services or the "catroot2" database can prevent driver signature verification. kaspersky error 27300 klif.sys-x64

driver (Kaspersky Interceptor and Filter) into the Windows operating system If you are reading this, you’ve likely just