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Disclaimer: This article is based on information from Kaspersky forums and support documents as of June 2026.
If the Windows setup service is broken or disabled, the driver will fail to write to your system. Press the Win + R keys, type services.msc , and hit Enter. Locate the in the list. Right-click it and open Properties . Set the Startup type to Manual or Automatic . ⚙️ Reset the Network Stack
Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network In the right pane, look for a binary value named .
Common culprits include VMware Workstation , Cisco AnyConnect, and WinPcap. kaspersky error installing driver klim6sys x64 upd
: For a one-time bypass of Windows' driver checks, you can restart your PC with the setting disabled. From the Windows sign-in screen, press Shift + Restart to enter the recovery environment. Then navigate to Troubleshoot → Advanced Options → Startup Settings → Restart . After the reboot, press '7' or 'F7' to select "Disable driver signature enforcement" . Try installing Kaspersky again. Remember to re-enable this feature after the installation is complete.
Before you start, make sure you are logged into Windows as an administrator, as driver installation requires the highest level of system permissions.
Next, navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\
These steps take less than 5 minutes and resolve the issue in about 30% of cases. Locate the in the list
(or a similar variant mentioning klim6.sys ).
One of the most persistent issues users encounter when setting up or updating Kaspersky security software is , often specifically citing a failure to install the klim6.sys_x64 driver. This driver acts as the "Kaspersky Anti-Virus NDIS Filter," an essential component that intercepts network packets to protect your device from online threats.
A: It is temporary and for troubleshooting only . Disabling it reduces your system's security by allowing unsigned (and potentially malicious) drivers to load. You should only keep it disabled for the duration of the Kaspersky installation. Immediately after a successful installation, restart your PC normally to turn the security feature back on.
Are you encountering the frustrating "Kaspersky error installing driver klim6sys x64 upd" while trying to install or update Kaspersky antivirus software on your Windows system? You're not alone. Many users have reported this issue, which can be caused by a variety of factors, including corrupted system files, outdated operating systems, and conflicting third-party software. ⚙️ Reset the Network Stack Navigate to the
If you see a "success" message, restart and try the installation again.
Test Mode lowers security. Only do this for the duration of the installation.
If the removal tool fails, you may need to take manual control of the file system. Navigate to C:\Windows\System32\drivers . Look for a file named . If you find it, right-click and Delete it.