Another antivirus or firewall might be mistakenly blocking the Kaspersky driver, treating it as a threat.
Run a full system scan with:
To resolve the Error 27300, follow these troubleshooting steps:
Open Command Prompt as Administrator . Step 2: Stop the service if it exists: sc stop klim6 sc delete klim6 Step 3: Navigate to the drivers folder: cd C:\Windows\System32\drivers Step 4: Take ownership of the file: takeown /f klim6.sys icacls klim6.sys /grant administrators:F Step 5: Delete the file: del klim6.sys (If it says "access denied," proceed to Method 4.) Step 6: Reboot and retry installation. error 27300 error installing driver klim6sysx64 exclusive
The Error 27300 can have significant implications for computer users:
Report generated for diagnostic reference. Use official vendor tools where available.
"What are you fighting?" Elias whispered to the machine. He decided to go deeper. He launched a kernel-level debugger to see what was happening at the exact moment the driver tried to load. Another antivirus or firewall might be mistakenly blocking
Restart your computer once both processes complete successfully. Comparison of Critical Fix Components Action Level Tool/Target Core Benefit When to Use Kaspersky Kavremover Wipes orphaned kernel traces and registry blocks. Always attempt first. System Polish MaxFilters Registry Hack Increases the OS network driver binding cap from 8 to 14. If you use heavy VPNs or Virtual Machines. Conflict Clear VMware / Cisco Uninstall Frees up locked NDIS driver stack pathways. If Device Manager throws a "Code 56" error. OS Validation DISM & SFC Commands Repairs damaged driver signing catalogs. If installation rolls back at exactly 25%.
Searching public driver databases (Microsoft Update Catalog, DriverGuide, etc.) yields for klim6sysx64 .
Go to .
If you are trying to install a Kaspersky security product and are hitting , you’re likely dealing with a conflict involving the Kaspersky Anti-Virus NDIS Filter driver. This error usually triggers a rollback, preventing the installation from completing.
If you are attempting to install or update a Kaspersky Lab security product and have been stopped dead in your tracks by the message you are not alone. This is a known issue specific to Kaspersky software installations on Windows.