Error 27300 Error Installing Driver Klim6sysx64 Exclusive [work]

If the removal tool fails, a "ghost" (hidden) network adapter might be locking the driver.

The file is part of the Kaspersky Anti-Virus NDIS Filter, which intercepts network packets for security scanning. The error usually arises from:

during a Kaspersky software installation indicates that the installer cannot deploy a critical driver, specifically the klim6.sys_x64 NDIS filter driver. This failure automatically triggers a setup rollback, preventing the security application from installing completely. error 27300 error installing driver klim6sysx64 exclusive

To fix a problem, you must first find its source. Error 27300 with the klim6.sys_x64 driver is rarely a random occurrence. It is typically triggered by one of the following underlying system states:

The klim6.sys file is an NDIS (Network Driver Interface Specification) filter driver. Kaspersky uses it to intercept and scan network traffic for malicious activity before it reaches your operating system. When the Windows Network Setup Service or Cryptographic subsystem blocks this driver from locking onto your network adapters exclusively, the installer crashes with Error 27300. The main triggers for this failure include: If the removal tool fails, a "ghost" (hidden)

Select the product, enter the security code shown, and click . Restart your computer after the tool finishes.

Error 27300 is a common installation issue encountered when installing or updating Kaspersky security products. It typically indicates that the installer failed to register a specific network filter driver —most often —resulting in a halted installation. Why This Error Occurs It is typically triggered by one of the

Applications using custom virtual network adapters—such as VMware Workstation, Cisco AnyConnect, or WinPcap—frequently clash with the klim6.sys driver deployment.

The debugger spat out a hex log, but one line stood out in red: STATUS_ACCESS_DENIED . But it wasn't the OS denying access. The call stack originated from a hardware interrupt.