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:

• 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)

1. Open Windows Security → Virus & threat protection.
2. Click Manage settings under “Virus & threat protection settings”.
3. Turn off Real-time protection.
4. Also disable Tamper Protection (if available).
5. Run the Kaspersky installer again.

Kaspersky Error Installing Driver klim6sys x64 upd: A Comprehensive Troubleshooting Guide kaspersky error installing driver klim6sys x64 upd

), you may need to temporarily disable driver signature verification through Windows advanced startup settings before retrying the installation. Update Root Certificates Failed to install driver klim6

The failure to install this specific driver is rarely a random event; it is usually triggered by specific system conditions: Open Windows Security → Virus & threat protection