Microsoft Outlook Email Viewing Bug Audit

Detect Outlook Installations With the EX255650 Issue

After the patch Tuesday of May 2021, Microsoft released an update for Microsoft Office which includes Outlook that causes a display issue in Outlook. Emails appear to be completely blank or only show the first line of an email. Microsoft already acknowledged the issue and is working on getting a fix out to everyone by May 12, 2021, at 3:00 AM UTC. However, in the meantime, users with build number 13929.20372 will be experiencing this issue.

To resolve the issue, you can revert the office by executing the following in CMD:

cd %programfiles%\Common Files\Microsoft Shared\ClickToRun\

OfficeC2RClient.exe /update user updatetoversion=16.0.13901.20462

To find out which machines in your network are affected by the issue, simply run the report below which will list all machines with an Office version that has build number 13929.20372. You can even combine this with an email alert to make sure that if any Office installation update, you get alerted.

Outlook Email Bug Query

Select Top 1000000 tblAssets.AssetID,
tblADusers.Displayname As [User],
tblSoftwareUni.softwareName As software,
tblSoftware.softwareVersion As version,
tblSoftwareUni.SoftwarePublisher As publisher,
tsysOS.Image As icon,
From tblSoftware
Inner Join tblAssets On tblSoftware.AssetID = tblAssets.AssetID
Inner Join tblSoftwareUni On tblSoftware.softID = tblSoftwareUni.SoftID
Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
Inner Join tsysOS On tblAssets.OScode = tsysOS.OScode
Left Join tblADusers On tblADusers.Username = tblAssets.Username And
tblADusers.Userdomain = tblAssets.Userdomain
Where tblSoftwareUni.softwareName Like '%Office%' And tblSoftware.softwareVersion like '%13929.20372%' And
tblAssetCustom.State = 1
Order By tblAssets.AssetName,

Audit and Take Action in 3 Easy Steps


1. Download & Install Lansweeper


3. Run the Audit & Take Action

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