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May 12, 2021 13:04
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There are severe Outlook issues with version 2104. (Install-Script Revert-M365AppsFrom2104)
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| <#PSScriptInfo | |
| .VERSION 1.0.1 | |
| .GUID ea95d532-3b54-48b0-97ef-45f16237e277 | |
| .AUTHOR Colin Cogle | |
| .COPYRIGHT (c) 2021 Colin Cogle. All Rights Reserved. Licensed under the AGPLv3. | |
| .TAGS Microsoft, screwed, up, again, 2104, Office, 2016, 2019, Current Channel, Outlook, bug, email, M365, update, devops-fail | |
| .LICENSEURI https://www.gnu.org/licenses/agpl-3.0.en.html | |
| .PROJECTURI https://gist.github.com/rhymeswithmogul/f6d5c37ed3058802e9cb94e637e989c9 | |
| .RELEASENOTES Documentation updates, link to PowerShell Gallery, remove swearing for broader public release. | |
| #> | |
| <# | |
| .SYNOPSIS | |
| Rolls back the Microsoft 365 Apps for business/enterprise to version 2102. | |
| .DESCRIPTION | |
| Rolls back the Microsoft 365 Apps for business/enterprise to version 2102, to work around a bug affecting the display of email signatures, compose windows, and display. Note that you must go in there afterwards and disable updates until Microsoft has a hotfix available. | |
| .NOTES | |
| For more information about an actual fix, check your Microsoft 365 Admin Center for EX255650. | |
| .LINK | |
| https://www.powershellgallery.com/packages/Revert-M365AppsFrom2104/1.0 | |
| .LINK | |
| https://gist.github.com/rhymeswithmogul/f6d5c37ed3058802e9cb94e637e989c9 | |
| #> | |
| Param() | |
| $C2RClientPath = '\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe' | |
| $C2RParameters = @('/update user', 'updatetoversion=16.0.13801.20294') | |
| $64bitOffice = Join-Path -Path $env:ProgramFiles -ChildPath $C2RClientPath | |
| $32BitOffice = Join-Path -Path ${env:ProgramFiles(x86)} -ChildPath $C2RClientPath | |
| If (Test-Path -Path $64BitOffice) { | |
| Write-Output 'Rolling back the Microsoft 365 Apps to version 2102.' | |
| Start-Process -FilePath $64BitOffice -ArgumentList $C2RParameters | |
| } | |
| ElseIf (Test-Path -Path $32BitOffice) { | |
| Write-Output 'Rolling back the Microsoft 365 Apps to version 2102.' | |
| Start-Process -FilePath $32BitOffice -ArgumentList $C2RParameters | |
| } | |
| Else { | |
| Write-Error 'The Microsoft 365 Apps are not installed on this computer.' | |
| } |
Some of our systems aren't having any issues on 2104, but many are, this was a huge life saver. Thanks so much for posting it.
Thank you!
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Some of you are rolling back to version 2103. That's fine. I have a few customers with the Microsoft 365 Apps for enterprise, so I had to roll back to version 2102 due to differences between the channels. That's perfectly fine, too.