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Troubleshooting Outlook Freezes and App Errors

Posted on February 17, 2026

A user reported an issue with Outlook freezing when opening an email due to a large photo in the sender’s signature, and suggested correlating app freezes events with the Outlook version. Other users shared known issues with Outlook and app freezes. It was recommended to troubleshoot by checking for large file sizes in signatures.


Read the entire ‘Troubleshooting Outlook Freezes and App Errors’ thread below:

Outlook freezes

What can be done ?

or any app freezes

sat with a user

He opens outlook, and when he clicks to open a mail as he has the reading pane on the right , then you can see it tries loadinding the content and that creates an freeze on the event logs


there are quite a few known issues with Outlook and app freezes

would be great to correlate the Outlook app freezes events with the Outlook version

this can be a good start I guess


I had an outlook freeze issue reported to me for one of my VDI users. It only happened for emails from a specific sender, and it would work fine in the OWA client.

Turns out the sender had an insanely large photo of themself in their signature… first time for everything I guess 😄

Continue reading and comment on the thread ‘Troubleshooting Outlook Freezes and App Errors’.  Not a member? Join Here!


Categories: All Archives, ControlUp Dashboards
Topics: Logs, Reporting, VDI

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