Installing, opening and using Outlook

End the stalled Microsoft Outlook process in Task Manager, reopen Outlook, and then repair or reset the app if the loading timeout returns.

1. Fully close the stalled Outlook process

1. Right-click Start and select Task Manager.
2. Under Processes, select Microsoft Outlook.
3. Select End task. End every Microsoft Outlook process if more than one appears.
4. Close Task Manager.
5. Open Microsoft Store, search for Outlook for Windows, and select Open from its Store page.

Microsoft specifically recommends ending the Outlook task when new Outlook stops responding or fails to start normally.^1^

Since the connection works and the proxy and Trend Micro exceptions have already been tested, do not repeat those changes.

2. Repair new Outlook

If Outlook still reports that the page took too long to load:

1. Open Start → Settings → Apps → Installed apps.
2. Find Outlook (new) or Outlook for Windows.
3. Select the three-dot menu → Advanced options.
4. Select Terminate if that option is displayed.
5. Select Repair.
6. When repair finishes, open Outlook again.

Repair attempts to fix the application without reinstalling it or removing its data.^2^

3. Reset Outlook if Repair does not work

Return to:

Settings → Apps → Installed apps → Outlook (new) → Advanced options

Select Reset, confirm the prompt, and then reopen Outlook. You might have to sign in and add the email account again after a reset. Repair followed by Reset is the documented recovery sequence for a Store app that is not running correctly.^2^

4. Install pending updates

If the reset does not resolve it:

1. Open Settings → Windows Update → Check for updates.
2. Install all available updates and restart the PC.
3. Open Microsoft Store → Library → Get updates.
4. Allow Outlook and Microsoft Store updates to finish, then test Outlook again.

Microsoft recommends updating both Windows and Microsoft Store apps when a Store-installed application will not work correctly.^3^

5. Reinstall new Outlook

If Outlook still will not open:

1. Open Start and locate Outlook (new).
2. Right-click it and select Uninstall.
3. Restart the PC.
4. Open Microsoft Store.
5. Search for Outlook for Windows and select Get or Install.
6. Open it and follow the prompts to add the email account.

Microsoft states that new Outlook requires Windows 10 version 17763.0 or later; a new PC running Windows 11 meets that operating-system requirement.^1^

If it still fails after reinstalling

• Use the email provider’s webmail temporarily to verify that the mailbox and credentials work independently of the Windows app.
• Open Event Viewer → Windows Logs → Application, try opening Outlook again, and inspect the newest error generated at that time. Record the Source, Event ID, and error text for a support request.^4^
• Do not use Classic Outlook fixes such as outlook.exe /safe, /resetnavpane, COM add-in removal, profile recreation, or SCANPST; those do not apply to the Microsoft Store version of new Outlook.^4^

References

1. Outlook for Windows not responding, hangs, freezes, or stops working | Microsoft Support
2. [Windows 10](https://support.microsoft.com/windows/apps/repair-apps-and-programs-in-windows#summary)
3. [Windows 10](https://support.microsoft.com/accounts-billing/fix-problems-with-apps-from-microsoft-store)
4. outlook wont open - Microsoft Q&A