A spate of recent updates caused problems in Outlook and the short-term fix is to uninstall the update; however, updates can’t be uninstalled from the Click-To-Run installations of Office, and almost all users have the Click-To-Run installation.
Instead, you will need to revert to an earlier version.
First, you need to disable Office updates. If you don’t disable updates, the problem update will reinstall itself. You can disable updates from the File menu in any Office application.
In Outlook (this is an Outlook help site after all), go to File, Office Account, Update Options and click on Disable Updates.
Next, create an appointment in your calendar for 30 days from now to remind yourself to check for updates. In many cases, the “bad” file will be removed or replaced with a corrected update, and you can allow Office to install updates without reinstalling "trouble" after a few weeks have passed.
Now you’re ready to roll back the click-to-run installation.
Windows 10: Start typing cmd on the Start screen in the task bar search field to find the Command Prompt then click Run as Administrator
Older Windows version: Right click on the Start button and choose Command Prompt (Admin). If you don't see Command Prompt on the menu, you'll need to type cmd on the Start screen to find the Command Prompt then right click on it and choose Run as Administrator
If you are using Outlook 2016, 2019, or 365, copy the following line, then right click in the command prompt window to paste it. Replace xxxx.yyyy with the build number you want to revert to. You can look up build numbers at Version numbers of update branches for Office 365 clients.
"C:\Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.xxxx.yyyy
|April 23 2021|
|March 30 2021|
Press Enter and the "update" will download and install.
Outlook 2013 users will change the directory to the path of officec2rclient.exe. To do this, in the command prompt window, type (or copy and right-click paste) the following if you are running 64-bit Office:
cd %programfiles%\Microsoft Office 15\ClientX64\
or this if using the 32-bit version of Office:
cd %programfiles%\Microsoft Office 15\ClientX86\
You’ll revert to a previous version of Office by running officec2rclient using a command line in this format, where 15.0.xxxx.xxxx is the previous version.
officec2rclient.exe /update user updatetoversion=15.0.xxxx.yyyy
The command line you'll use will look something like this (this is the July 2014 build):
officec2rclient.exe /update user updatetoversion=15.0.4631.1002
You can get the Office 2013 version numbers from Microsoft Office 2013 Click-to-Run virtualization or Office 2016 versions here: Version and build numbers of update channel releases for Office 365 clients
Choose Online Repair. Once repair is complete you can check your version to verify it updated properly. Note: you'll probably be asked to log in again and verify your license.
How to revert to an earlier version of Office 2013 or Office 2016 Click-to-Run (MSKB)
Version and build numbers of update channel releases for Office 365 clients
Thank You Diane ! it works !
I tried reverting back to a previous installation, but the changes aren't being applied, or at least that's what I think. I'm trying to go back to a previous installation of Word, as the new updates haven't been to my liking, but each time I've reverted back to another installation nothing has changed with the Word application. If there's any solution, it would be greatly appreciated!
did you disable automatic updates? Did you roll back far enough to undo the changes?
Is this valid for Office 2021? I am trying to do this but it does not seem to work.
It is valid for office 2021. What build are you at now and what build do you want to roll back to?
I just made a new reply sorry. For some reason this was not appearing for me a short while ago.
I had Office 2016 Pro Plus MSI installed, and then Microsoft did something in July which I can't find any info on, because one day I fired up OneNote 2016, and instead found that it was now suddenly OneNote 2019 C2R… A full upgrade had occurred without consent or interaction from me… And there's nothing at all listed for Office in the Control Panel's "Installed Updates". There's also no entry for v2019 in Add-Remove Programs - it's actually still listed there as v2016... And if I click "Change" for that entry, it only offers "quick repair" or "online repair". So my questions then: (1) Where is the published info on this move from Microsoft? And (2) How do I revert back to 2016 MSI? Thank you.
Hello, I noticed when I wanted to revert back to Office 2016, Microsoft had pulled the software off their sites. How else can I go back to Office 2016?
Do you have a license linked to your Microsoft account? Should be able to download from account.microsoft.com. If you did not add the key to a Microsoft account and did not save the officesetup.exe, I'll see if I can find a link.
Hi how can i roll back to 2019 from 2021
Since its a separate program, you would uninstall 2021 then install 2019 (you need a license for 2019).
Recently received Office build 14827.20158, and neither the steps above nor any other support posts are able to remove it and revert back to 14701.20290. The current build is causing multiple instances of Access to open and stay open which then throws a "cannot open more databases" error to occur.
Hello, I´am not able to repair Outlook 365 athought I have installed the build from Dec 2020. This advice worked for each 2019 version which I needed to repair but for this 365 not. Help please.
It will work - what version are you trying to roll back to?
Actual version which I´v installed is 2002 build 12527.21416. I will be satisfied with any functional version. Thanks a lot
That is a really old build. Is there are reason you haven't updated it? The last release for the slowest lane is 12527.21952 - basically a couple of security fixes newer. Anything older is "not supported" by Microsoft.
This is (IMHO) the last know good build for Office 365 - from April 23. That's version 2013.
"C:\Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.13901.20462
I´ve changed to version 16.0.13901.20462 but autocomplete still shows wrong. That's why I tried older and older versions.
Is it still opening upward and has a large autocomplete list?
If you have the subscription version you need to use the registry key to get the small list, but it is always small in the one-time purchase version.
The (good) Autocomplete list is back (slipstick.com)
Thank you so much. This is what I needed.