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These Outlook data (PST) files store user’s data, including email messages, calendars, tasks, journals, etc.
After multiple restarts the program will open one time, then reverts.
You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts.
By default, you should be able to find it in the Program Files
In this article let’s have a look at the solutions to fix Outlook crashes during startup problems.
If you prefer to access Outlook on a desktop, you can try installing a different browser, such as Microsoft Edge.
See Working with message folders in Outlook.com to learn more about available folders.
Step 2 - Follow these instructions to install your Office application.
If you want to repair your corrupted PST file, opt for the Cigati PST Repair Tool.
You can start Outlook in safe mode, disable your add-ins, and then try to open Outlook normally.
The trial version of the software is also available for free download, so you can try it before purchasing the full version.
If anyone finds a more permanent solution, I would appreciate it.
To get support in Outlook.com, click here or select Help on the menu bar and enter your query.
You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors.
See and manage the tasks in the selected list from this window.
Microsoft has released a Windows Hotfix file to remove the contacts folder synced by the Teams app.
Once you've changed your password with your email provider, you can update the password in Outlook.
If you follow the above solutions, your Outlook will perform according to your expectations.
Problematic add-ins can interfere with Outlook’s startup process.
After performing the steps, check if the error persists.