To understand why this error happens, it helps to know what this file is. The klim6.sys driver is the . This is a legitimate, core component of Kaspersky software. It's the part of the application that intercepts and scans all network traffic to protect you from web-based threats. Because this driver operates at a very deep level of the Windows networking system, its installation is strictly regulated, which is why errors can occur.
If the problem persists, it may be time to gather your installation logs and reach out to Kaspersky Technical Support for personalized assistance.
When the Kaspersky installer attempts to load this driver, it must attach itself to the Windows Network Stack. The error occurs when:
Click , close the registry editor, and reboot your system. Step 5: Verify the Network Setup Service
If you use VMware Workstation, Cisco AnyConnect, or , temporarily uninstall them via the Windows Control Panel. kaspersky error installing driver klim6sys x64 upd
A notable success story comes from a user on the Kaspersky Beta forum who was blocked by Secure Boot. They used the free tool "Tweaking.com Windows Repair" in Safe Mode to repair all issues with their Windows 10 system. After this deep system repair, a restart, and a fresh installation attempt, they succeeded in installing Kaspersky.
Select the Kaspersky product that failed to install from the dropdown list. Click and wait for the process to complete.
Allow the scan to finish and restart your computer to see if the issue is resolved.
This error is not unique to Kaspersky; it can affect the installation of any software that uses an NDIS filter, such as other antivirus programs or VPN clients. To understand why this error happens, it helps
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\LightweightFilter Look for the DWORD value .
Search for in your Start menu, right-click it, and select Run as Administrator . Type the following command and press Enter: sc delete klim6
Press Windows Key + E to open File Explorer and navigate to C:\Windows\System32\drivers .
Retry the installation. Windows will create a clean catalog file database. Alternative Manual Driver Installation It's the part of the application that intercepts
The driver klim6.sys is the Kaspersky Lab Interceptor and Modifier. This Network NDIS Filter driver inspects incoming and outgoing network traffic. When Windows blocks this driver from installing, it is typically due to conflicting network software, leftover antivirus traces, or registry limits. Root Causes of the klim6.sys Error
To resolve this issue, you must systematically clear these bottlenecks:
If it is set to its default (usually 8 or 14), double-click it, switch the base to , and change the value to 14 or 20 (maximum allowed). Click OK and reboot. 4. Reinstall Third-Party Virtual Network Adapters