It was just another morning at work on July 15, 2020 for many Windows users. They shut down their computers, some of them may have noticed that they had received an update from the Outlook program, and then they tried to open their email in Outlook … Suddenly, their day changed for the worse.
For many, Windows Outlook silently crashed when they tried to start it. Many Office 365 business users also discovered that the Outlook mail service was also launched only to crash immediately. Hours later, Microsoft admitted on Twitter that there was a real problem.
We are investigating whether a recently implemented update could be the source of this problem. As an alternative solution, users can use Outlook on the web or their mobile clients. Additional details can be found in the admin center under EX218604 and OL218603.
Later, Microsoft tweeted that it was “implementing a solution to this problem, and we hope that mitigation will reach all customers in the next few hours.”
This flaw seems to have been the result of last night’s Outlook update. These were meant to give Outlook, in all its different versions, all the same features. Failure.
According to the suggestions of the Reddit Sysadmin forum, you can fix the problem on local PCs by going back to the monthly version of channel 20470. You do it with the following steps:
Go to the command prompt and:
cd ” Program Files Common Files microsoft shared ClickToRun”
Then run, as administrator,
officec2rclient.exe / update user updatetoversion = 16.0.12827.20470
At this time, there is no known Microsoft Windows Installer (MSI) repair.
This is a workaround, but it’s better than cursing on your computer. Once Microsoft has fixed the problem, which I hope in the short term, it will be to undo the update. You will want to use the official solution.
If you are using Outlook as a service, try, as Microsoft suggests, using the Outlook web interface or a mobile app.
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