Kaspersky Error 27300 Klif.sys-x64 — [better]

Third-party applications, especially those that use network filtering or virtual drivers, can conflict with klif.sys .

Hold down the key while clicking Restart in the Windows Start Menu.

You can attempt to repair Windows system files using built-in tools:

The error 27300 is a critical failure that occurs when Kaspersky's kernel-mode driver, klif.sys, fails to load or function properly. The "-x64" suffix indicates that this error is related to the 64-bit version of the driver. kaspersky error 27300 klif.sys-x64

The error typically stems from one of three primary system-level conflicts: Operating System Integrity Issues : Corruption in Windows Cryptographic Services Catalog Database

: Temporarily turn off active third-party firewalls or real-time antivirus shields that may be actively blocking klif.sys from writing to your operating system directories.

I've conducted a thorough search and found a few resources that might help you understand and resolve the Kaspersky error 27300 related to klif.sys-x64. Here's a compiled paper: The "-x64" suffix indicates that this error is

If essential Windows deployment files are corrupted, the operating system will reject new third-party kernel drivers. You can repair these files using built-in command-line tools. Type cmd in the Windows search bar. Right-click and select Run as administrator . Type the following command and press Enter: DISM.exe /Online /Cleanup-image /Restorehealth Use code with caution.

: Failures in Windows Cryptographic Services or the "catroot2" database can prevent driver signature verification.

Error 27300 when installing a Kaspersky application for home Here's a compiled paper: If essential Windows deployment

If the error is related to digital signatures (often accompanied by code 0x8000ffff), you may need to reset the Windows Update catalog:

Leftover keys preventing the new driver from being written.

Right-click again and select Properties . Ensure the Startup type is set to Automatic . Click Apply and OK . Step 3: Remove Conflicting Third-Party Drivers