System crash (blue screen) BugCheck 50 occurs during upgrade to VirusScan Enterprise Patch 10

Technical Articles ID: KB90224
Last Modified: 4/30/2020

Environment

McAfee VirusScan Enterprise (VSE) Patch 10

Microsoft Windows Servers

For details of VSE supported environments, see KB51111.

Problem

System crash (blue screen error) can occur during an upgrade from an earlier (older) VSE version to VSE Patch 10.

Bugcheck Analysis key details:

Bugcheck 50
PROCESS_NAME: DAInstall.exe mfeaack+8bad (AV_mfeaack!unknown_function)
Or
PROCESS_NAME: DAInstall.exe (mfeaack!CAacSys::ReportEvent+0x1dd)

Cause

The system crash is the result of an improper cleanup of the Clifton driver (mfeclftk.sys). It was unloaded without properly being de-registered.

Solution

This issue is resolved in VSE 8.8 Patch 11, which is available from the Product Downloads site at: https://www.mcafee.com/enterprise/en-us/downloads/my-products.html.

NOTE: You need a valid Grant Number for access. See KB56057 - How to download Enterprise product updates and documentation for more information about the Product Downloads site, and alternate locations for some products.

Patches are cumulative; Technical Support recommends that you install the latest one.

To view other key known and resolved issues, see KB70393 - VirusScan Enterprise 8.8 Known Issues.

VSE 8.8 Patch 11 removes the Clifton driver to prevent a system crash.

VSE 8.8 Patch 16 is the latest patch available from the Downloads tab on the ServicePortal at https://support.mcafee.com/downloads.

NOTE: VSE 8.8 Patch 16 supports all supported Windows operating systems.

Affected Products

Known Issue/Product Defect
Upgrade/Migrate
VirusScan Enterprise 8.8

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System crash (blue screen) BugCheck 50 occurs during upgrade to VirusScan Enterprise Patch 10

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Affected Products

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System crash (blue screen) BugCheck 50 occurs during upgrade to VirusScan Enterprise Patch 10

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