Thursday 30 July 2020

Downgrade Office 365 Click to Run

First you going to need to know what you are downgrading too.

Once you know the build you want to use:

  1. Start PowerShell Elevated
  2. Type cd  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun"
  3. Type ".\OfficeC2RClient.exe /update user updatetoversion=16.0.<BUILD NUMBER>"
This should then trigger the Office installer which will do the rest of the work.  Once its finished I would open an office application and confirm its worked and then disable updates.

I would not recommend this as a go to fix really if you can help it.  but if you have old add-ins and plugs that are playing up on a newer build and the company is not in a position to get them updated it can help in the short term.

Long Term I would recommend resolving the issue that is that is making you downgrade and then reenable the updates again. 

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