Once you see the "Installation Complete" screen without the 27300 error, reboot immediately to finalize the driver load. After that, your security software will function perfectly, and klim6sysx64 will silently protect your system in the background.
The file klim6.sys is the . This driver operates at the Network Driver Interface Specification (NDIS) layer, allowing the security software to intercept, scan, and filter network traffic for malicious activity before it reaches the operating system.
Sometimes local user profiles—even those with administrative privileges—experience temporary security token blocks during kernel-mode driver registration. Open as an administrator. Enable the built-in master administrator account by typing: net user administrator /active:yes Use code with caution.
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Restart your PC in Normal Mode and attempt the installation again. 2. Repair Windows System Files
Remaining files from old versions are the most frequent cause of driver installation failures.
Because the error relates to a Kaspersky driver, the vendor provides a specialized tool to clean up locked files and registry keys. Once you see the "Installation Complete" screen without
If the error persists, Windows Security is likely blocking you.
: Use dedicated removal tools for any previously installed software (e.g., McAfee Consumer Product Removal tool Kaspersky Support Forum 2. Reset the Cryptographic Services Database Corruption in the Windows driver catalog often prevents from being verified and installed. Command Prompt as an Administrator. net stop cryptsvc and press Enter to stop the service. Rename the catalog folder by typing ren %systemroot%\System32\catroot2 catroot2.old
If the above steps don't resolve the issue, you may want to try: This driver operates at the Network Driver Interface
Restart your computer; Windows will automatically recreate a fresh, uncorrupted version of the folder. 3. Manually Delete the Stuck Driver
: This error frequently occurs on devices with ARM processors (like Snapdragon), which are not supported by standard Kaspersky versions.
Select the Kaspersky version you were trying to install and click . Restart your PC and try a fresh installation.
Do not restart your computer yet. Run these deployment image servicing commands to fix core system corruption: DISM.exe /Online /Cleanup-image /Restorehealth sfc /scannow Use code with caution. Once the system scan finishes, restart your computer. Step 5: Check Device Manager for Ghost Network Adapters
Download the kavremover tool from the official Kaspersky website .