Just follow the methods below
Solution Unfortunately, we're having trouble opening this item in Microsoft Outlook
Are you seeing the error message "Sorry, we're having trouble opening this item" when you try to open an item (such as an email) in Microsoft Outlook? If so, your Outlook app or your computer may be experiencing technical issues. There are multiple reasons why this error could occur with your email client.
You can try double-clicking your item again to see if that opens. If you have no luck, try some advanced tips below to fix this Outlook problem.
One way to fix most minor issues with Outlook is to restart the app. This will give the app another chance to load your configuration, which will fix minor issues with the app.
