10 Ultimate Solutions When Outlook Won’t Open in Windows

Unable to access microsoft outlook

Outlook is an excellent full-featured, powerful and reliable email client from Microsoft. However, there may be times when you may experience issues with Outlook not being able to load or open, which can be confusing and frustrating. 

In this guide, we’ll show you some simple and more advanced troubleshooting solutions that can help you get Outlook back up and running quickly.  

Restart Your Computer

Before diving into more technical solutions, it’s important to try the simplest one: restarting your computer. This can resolve temporary issues that may be preventing Outlook from opening.

  1. Save any open documents and close all programs.
  2. Click on the Start button and select Restart.

After your computer has rebooted, try opening Outlook again.

Run Outlook in Safe Mode

Running Outlook in Safe Mode can help you identify if the issue is caused by a problematic add-in or a corrupted file.

  1. Press Windows + R to open the Run dialog box.
  2. Type outlook.exe /safe and click OK.
  3. If Outlook opens successfully in Safe Mode, proceed to Disable Add-ins to identify the culprit.
run outlook in safe mode

Check for Updates

Ensure your Microsoft Outlook and Windows are up to date, as updates often include bug fixes and performance improvements.

  1. Open Microsoft Outlook.
  2. Click on File > Office Account > Update Options > Update Now.
  3. Check for Windows updates by opening Settings > Update & Security > Windows Update > Check for updates.

Install any available updates and restart your computer if required.

Repair Your Outlook Profile

A corrupted Outlook profile can cause the application not to open. Follow these steps to repair your profile:

  1. Open Control Panel > Mail > Show Profiles.
  2. Select your Outlook profile and click on Properties.
  3. Click Email Accounts > Repair > Next.
  4. Follow the wizard and restart Outlook.

Disable Add-ins

Add-ins can cause compatibility issues and prevent Outlook from opening. To disable add-ins:

  1. Run Outlook in Safe Mode (as described in Run Outlook in Safe Mode).
  2. Click on File > Options > Add-ins.
  3. Select COM Add-ins and click Go.
  4. Uncheck all add-ins and click OK.
  5. Restart Outlook normally to see if the issue is resolved.

Repair Outlook Data Files

Corrupted data files can also cause Outlook to malfunction. Use the Inbox Repair Tool to fix them:

  1. Close Outlook and locate scanpst.exe on your computer (usually in the Office installation folder).
  2. Run scanpst.exe and click Browse to select the corrupted .pst file.
  3. Click Start > Repair to begin the repair process.
  4. Once the repair process is complete, restart Outlook and check if the issue is resolved.

Reset Navigation Pane

Resetting the navigation pane can resolve issues with Outlook not opening.

  1. Press Windows + R to open the Run dialog box.
  2. Type outlook.exe /resetnavpane and click OK.
  3. Check if Outlook opens successfully.

Create a New Outlook Profile

If your current profile is corrupted, creating a new one can resolve the issue.

  1. Close Outlook and open Control Panel > Mail > Show Profiles.
  2. Click Add and enter a name for the new profile.
  3. Follow the setup wizard to add your email account.
  4. Set the new profile as default by selecting Always use this profile and choose the new profile from the dropdown list.
  5. Click OK and open Outlook.

Reinstall Microsoft Office

Reinstalling Microsoft Office can fix any corrupted files that may be preventing Outlook from opening.

  1. Uninstall Microsoft Office by opening Settings > Apps > Apps & features > Microsoft Office > Uninstall.
  2. Restart your computer.
  3. Download the latest version of Microsoft Office from the official website and install it.
  4. Open Outlook and check if the issue is resolved.

Contact Microsoft Support

If none of the above solutions work, contact Microsoft Support for further assistance.


We hope that this comprehensive guide has helped you resolve the issue with Outlook not opening. By following these 10 ultimate solutions, you should be able to troubleshoot and fix the problem to continue using Outlook seamlessly. Make sure to keep your software updated and regularly check for potential issues to ensure optimal performance.

A[Restart Your Computer] --> B[Run Outlook in Safe Mode]
B --> C[Check for Updates]
C --> D[Repair Your Outlook Profile]
D --> E[Disable Add-ins]
E --> F[Repair Outlook Data Files]
F --> G[Reset Navigation Pane]
G --> H[Create a New Outlook Profile]
H --> I[Reinstall Microsoft Office]
I --> J[Contact Microsoft Support]

This diagram illustrates the flow of our suggested solutions for when Outlook won’t open. Start with the simplest solution and work your way through the list until you resolve the issue.

Still confused? Need help understanding in doing quick-fix, Talk to our team of experts today.

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Hitesh Patel
Hitesh Patel is an engineer turned business owner of WPG Consulting. He is a techie enthusiast who believes in finding creative IT solutions to solve consumer problems.

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