Sometimes, a simple reboot can resolve the issue. Restart your system and try installing the driver again.

The klim6sys x64 upd is a system driver used by Kaspersky antivirus software to ensure the proper functioning of its features. The driver is responsible for interacting with the operating system and other system components to provide security services.

If you are not comfortable with manual driver deletion or registry editing, always seek professional IT assistance. But for most home users, following Solutions 1 through 4 in order will restore a clean Kaspersky installation within 30 minutes.

Kaspersky provides a dedicated tool to scrape every last trace of its drivers from the registry and file system.

The error may occur due to various reasons, including: