The klim6.sys driver serves as the Kaspersky Kaspersky Anti-Virus NDIS Filter. This filter intercepts network packets to protect against web-based threats, network attacks, and malicious downloads. When Windows blocks this driver package from initializing within its 64-bit network stack, the main installer throws Error 27300 and fails. Technical Causes of the Error
The core of the issue revolves around a critical file named (or its 64-bit variant, klim6.sys_x64). This file is the Kaspersky Anti-Virus NDIS Filter , a low-level network driver. Its primary function is to intercept network packets flowing between your computer and the internet. It uses a technology recommended by Microsoft called the "NDIS Intermediate Driver" to embed itself into the network stack of the operating system. This allows Kaspersky applications to scan web traffic, block malicious sites, and filter network activity in real time, providing a critical layer of protection.
Run the removal tool as an , select your specific Kaspersky product from the list, and complete the removal process. Once finished, restart your computer normally. Step 3: Check the "Network Setup Service" kaspersky error installing driver klim6sys x64 upd
The system32 folder might contain corrupted klim6 drivers from a previous session.
| Error Code | Target Driver | Solution | | :--- | :--- | :--- | | 2147023673 | klim6.sys | Download and install the very latest version of your Kaspersky application directly from the official website. | | 2146500025 | klim6.sys | Solution: Temporarily disable Windows Driver Signature Enforcement (see detailed instructions below). Re-enable it after the installation is complete. | | 2147024883 | klim6.sys | Solution (Windows 7 or 8 only): Open Registry Editor , navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network , rename the Config parameter to Config2 , and restart. | | 2147024770 | Any | Solution: Perform a clean boot as described in Step 1 to rule out software conflicts. Also, ensure all Windows updates are installed. | | 2147416359 | Any | Solution: Temporarily disable Secure Boot in your BIOS/UEFI settings. Re-enable it after installation. | | 2147418113 | Any | Solution: Rebuild the Cryptographic Services (cryptsvc) catalog (see advanced steps below). | The klim6
If none of the above steps work, try reinstalling Kaspersky:
Because klim6.sys is a network filter driver, it often conflicts with other software that uses similar technology, such as VPNs or virtual machine software. Technical Causes of the Error The core of
The driver installation fails primarily due to five distinct conflicts:
Common error messages include:
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