Kaspersky Error Installing Driver Klim6sys X64 Upd -

Comprehensive Write-Up: Kaspersky Error Installing Driver klim6.sys (x64) on Update/Installation

1. Overview

Error Description:
When installing, upgrading, or updating a Kaspersky endpoint or consumer security product (e.g., Kaspersky Endpoint Security, Kaspersky Internet Security, Kaspersky Total Security, Kaspersky Small Office Security) on a 64-bit version of Windows, the installation process fails midway with a message similar to:

2.1. Conflicting Third-Party Security Drivers

• Another antivirus, endpoint detection and response (EDR), or firewall product is already installed and has registered its own file system minifilter driver at a higher or conflicting altitude (load order).
• Common culprits: McAfee, Symantec Endpoint Protection, Trend Micro, Avast, Bitdefender, CrowdStrike Falcon, Microsoft Defender (with real-time protection enabled).

• Failed to install driver klim6.sys
• Error code: 0x80070005 (Access Denied)
• Error code: 0x80070002 (File Not Found)
• Error code: 0x800703E6 (Invalid access to memory or driver load failure)
• Error code: 0x80070424 (Service does not exist — previous driver service not removed)

the computer (do not just restart), then power it back on normally. Kaspersky Support Forum 2. Clear Conflicting Network Drivers kaspersky error installing driver klim6sys x64 upd