Error 27300 Error: Installing Driver Klim6sysx64 Exclusive
Error 27300 occurs during Kaspersky installation when the application fails to install the klim6.sys driver, which is part of the Kaspersky Anti-Virus NDIS Filter. This driver intercepts network packets to protect your system, but installation often fails due to leftover traces from previous versions, conflicting third-party network drivers, or damaged system services. Top Recommended Solutions
Solution: Temporarily uninstall these applications or update them to their latest versions to refresh their drivers before trying the Kaspersky installation again. error 27300 error installing driver klim6sysx64 exclusive
How to Fix Kaspersky Error 27300: Driver klim6.sys_x64 Installation Failed Error 27300 occurs during Kaspersky installation when the
- Enable test signing (temporary, for troubleshooting):
bcdedit /set testsigning on(then reboot) - Install the driver again.
- If it works, contact the vendor for a properly signed version.
- Disable test signing afterward:
bcdedit /set testsigning off