Outlook performance issues

Question

Hello and good morning,

I have a user that is having issues with his Outlook that I can't seem to fix. His Outlook is freezing/not responding when receiving emails with PDF items attached and also sending out PDF items.

Win 10 Enterprise

Build 10.0.19045.2846

Version 22H2

Performed the following:

Windows updates

Group Policy updated

Full repair to Outlook

Uninstall/reinstall O365

Thank you,

• Ronnie Cumba

Answer 1

We've encountered many problems, so it seems that updates are the cause then.

Answer 2

Same issue here, since the KB5025221 update some of our users are facing this issue on and off. Microsoft has not been helpful in identifying the issue or coming up with a fix. This is a really strange one.

Answer 3

Hi there,

Time has not been our side and are unable to address and fix the issue. We will proceed with a reimage and configuration of a new computer to see if it corrects the Office 365 suite.

Thank you for your time.

• Ronnie

Answer 4

Hi Kerry and good morning.

Thank you for assisting me with this issue.

I sent the user the link to access the Outlook through the browser OWA.

For the new mail profile account through the control panel, I did try this as well but no luck.

Will advise as soon as I hear back from the user.

Answer 5

Dear RonnieJC

Good day! Thank you for posting to Microsoft Community. We are happy to help you!

Based on your description, I have a general understanding of your problem and in order to better help you, we still need to gather more information to narrow down the scope of the problem:

• If you have received any other detailed error messages or error codes, please kindly share a screenshot with me for further research and testing, thank you.
• If you are using the Outlook Desktop Client, please try logging in to OWA (Outlook Web App) with your account to check the results.
• If OWA side query occurs, kindly check with different browser and also check with your colleagues, if they have same query or not and update us.
• In the meantime, if your problem not occur in OWA, please also kindly try following methods to repair your Outlook desktop client to check the results:

1. Also please kindly try to Open Outlook in safe mode - Microsoft Support
2. Although you mentioned that you have done a comprehensive repair of Outlook, I would like to ask you if you have tried to repair Outlook data file and if not please kindly try to repair outlook data to check the result: Repair Outlook Data Files (.pst and .ost) - Microsoft Support
3. Please also kindly try to create a new profile to check the result, and in order to prevent loss of your important data, please backup Outlook data in advance.

Please kindly believe that after receiving the feedback I need, I will do more research and testing as soon as possible to better help you, thank you in advance!

Thanks in advance for your understanding! Your patience and cooperation will be highly appreciated. Hope you all the best!

Sincerely,

Kerry Chen | Microsoft Community Moderator