McAfee Agent fails to install if MSI is disabled

Technical Articles ID: KB92405
Last Modified: 2021-02-22 16:37:44 Etc/GMT

Environment

McAfee Agent (MA) 5.x

Microsoft Windows supported operating systems

For environment information, see KB51573 - Supported platforms for McAfee Agent 5.x.

Problem

When MSI is disabled, the McAfee Agent deployment and local installations fail.

The error below is recorded in the McAfee Agent MSI log:

Rejecting product '': Msi is completely disabled.

Cause

MSI has been disabled on the target system via a Local Machine policy or Group policy.

Solution

Edit the registry on the problem system, and change the DisableMSI key to allow a successful installation:

CAUTION: This article contains information about opening or modifying the registry.

The following information is intended for System Administrators. Registry modifications are irreversible and could cause system failure if done incorrectly.
Before proceeding, Technical Support strongly recommends that you back up your registry and understand the restore process. For more information, see the Microsoft Windows registry information for advanced users article.
Do not run a REG file that is not confirmed to be a genuine registry import file.

Press the Windows key + R, type regedit into the field, and press Enter.
Navigate to:

HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer\DisableMSI
Set the DisableMSI REG-DWORD value to = 0.

NOTES:

If the DisableMSI REG-DWORD is set to the value 2, then the Group Policy Object (GPO) or Local Machine policy has been configured to disable MSI.
The McAfee Agent relies on MSI to successfully install. For details, see https://docs.microsoft.com/en-us/windows/win32/msi/disablemsi.

Affected Products

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McAfee Agent fails to install if MSI is disabled

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McAfee Agent fails to install if MSI is disabled

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