Error 27300 with klif.sys can be frustrating, but it is almost always solvable by fully removing old security software and performing a clean reinstallation of Kaspersky using their official removal tool.
Before we dive into the error, it's essential to understand what KLIF.SYS-X64 is. KLIF.SYS, or Kaspersky Low-Level Intercept Filter, is a system driver used by Kaspersky antivirus to intercept and analyze system calls, helping to detect and prevent malicious activities. The "-X64" suffix indicates that this is a 64-bit version of the driver, designed for 64-bit Windows operating systems. kaspersky error 27300 klif.sys-x64
Corrupt Windows files can block driver installation. Error 27300 with klif