VBA & Macro Problems

How to Restore Disabled Macros in Project Online Enterprise Global Template

Amos Gikunda Sep 28, 2026 869 views

Question details

Users need to restore and enable macros in the Microsoft Project Online Enterprise Global template that have been blocked due to an untrusted source error.

How to Restore Disabled Macros in Project Online Enterprise Global Template

Product: Microsoft Project Online
Device & OS: Windows
Scenario: Running existing VBA macros in a managed Project Online environment after installing a recent Microsoft Office update.
Observed behavior: Macros are entirely disabled in the Enterprise Global template, the option to enable them is unavailable, and the system shows an error stating macros are blocked from an untrusted source.

Before you start

Before making system-level changes or rolling back Office versions, ensure you back up your Windows Registry and save all your active Project files.

Solution 1Recommended

Roll Back Office to Version 2407 (Build 17830.20166)

Use the Office Click-to-Run utility via the Command Prompt to revert to a stable build where the Enterprise Global macros function correctly.

This issue typically occurs because recent Microsoft updates automatically block macros from what the software incorrectly identifies as untrusted network sources. Rolling back to a previous build bypasses this new security restriction until a permanent patch is released.

Open Command Prompt as Administrator

Click the Windows Start menu, type 'cmd', right-click on 'Command Prompt', and select 'Run as administrator'.

Navigate to the Click-to-Run Directory

Type the command `cd C:\Program Files\Common Files\Microsoft Shared\ClickToRun` and press Enter to access the Office updater folder.

Execute the Rollback Command

Type `OfficeC2RClient.exe /update user updatetoversion=16.0.17830.20166` and press Enter to initiate the downgrade process.

Wait for the Update to Complete

An Office update window will appear. Wait for it to finish downloading and applying the previous version, then restart Microsoft Project.

Roll Back Office to Version 2407 (Build 17830.20166)

Disable Automatic Updates: After rolling back, open any Office application, go to File > Account > Update Options, and click 'Disable Updates' to prevent the problematic version from reinstalling automatically.

Solution 2

Request Administrator Support for Registry Fix

For managed corporate environments where command prompt access is restricted, involve your IT administrator to apply Microsoft's official registry patch.

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Frequently Asked Questions

Why are macros suddenly disabled in my Project Global Template?

Recent Microsoft Office security updates feature stricter default policies that block macros originating from network or internet sources labeled as 'untrusted' in order to prevent malicious script execution.

Will rolling back my Office version affect my other files?

No. Rolling back simply reverts the application files for Word, Excel, PowerPoint, and Project to a previous feature state. It does not delete, modify, or corrupt your saved documents and project plans.

How do I know if this macro block affects my specific version?

The issue is widely reported on Microsoft Project version 2407, specifically on builds later than 17830.20166. You can verify your current build number by going to File > Account within Microsoft Project.

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