Error 27300 Error Installing Driver Klim6sysx64 Exclusive · Best Pick

Previous uninstalls of Kaspersky or other antivirus packages (e.g., Sophos , McAfee) often leave behind stale filter drivers in %WINDIR%\System32\drivers .

Windows has a default limit on how many network filters can be installed. If you use VPNs, virtualization software (like VMware), or other security tools, you might have hit this ceiling. Press Win + R , type , and hit Enter.

Navigate to the Kaspersky Support Page and download the official tool. Restart your computer in Safe Mode . Run kavremover.exe as an administrator. error 27300 error installing driver klim6sysx64 exclusive

Before diving into advanced solutions, it is wise to perform some quick checks that may provide a shortcut to a solution.

Error 27300 when installing a Kaspersky application for home Previous uninstalls of Kaspersky or other antivirus packages

occurring when the installer cannot properly register the network filter driver klim6.sys_x64

Error 27300 when installing a Kaspersky application for home Press Win + R , type , and hit Enter

If the above troubleshooting steps don't resolve the issue, try these advanced solutions:

Type the following command and press Enter to stop the driver service: sc stop klim6

Run the tool as an Administrator, select the product version you previously had, and click .

Step 1: Perform a Clean Uninstall of Previous Security Software