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Outlook being a great platform, still encounters some glitches and errors like Outlook 365 not working on Windows 10. This error leads to less productivity, especially if Outlook 365 is your default email client. The only way to resolve this issue is to repair Outlook 365 in Windows 10. But the problem arises when you don’t know the correct way of doing it.
In this guide, we will learn how to repair Outlook 365 in Windows 10/11 with the best possible ways.
Common Issues Which Stop Outlook from Opening on Windows 10
There are multiple reasons which stop Outlook from opening on Windows 10 system. Here is a list of some:
- Outlook crashes or freezes frequently
- Outlook won’t open (stuck at loading profile)
- Emails disappear or fail to load
- Error messages (e.g., “Outlook not responding”)
- Send/receive errors (SMTP/POP3 issues)
- Slow performance (lagging or delays)
- Outlook closes unexpectedly
- Add-ins not working
Quick Tips to Repair Outlook 365: Instant Fixes!
Before moving to the methods to repair Microsoft Outlook 365 not working, you can try some quick fixes:
- Make sure you have strong internet connectivity.
- Check if you are using the latest version of Outlook 365.
- Make sure your Windows 10 is updated with latest version.
- Try opening Outlook 365 in Safe mode.
- Uninstall and reinstall Outlook 365 application.
- End background processes from the task manager.
Methods to Repair Outlook 365 in Windows 10: Best Resolutions!
Here are some of the reliable methods to restore Outlook 365 not working issue. Follow these methods step-by-step to overcome the issue.
Method 1. Using Microsoft Quick Repair
Microsoft provides a free Office 365 troubleshooting tool that can resolve most of the common problems related to Office 365 applications. Follow the steps given below:
Step 1. Open Control Panel and click on Programs and Features.
Step 2. Find the Microsoft 365 app and right-click on it to see the available options. You will see two options – Change and Uninstall. Click the Change option to repair Office 365.
Step 3. Now, select from any of the given options, including Quick Repair and Online Repair. After that, select Repair to proceed.
Method 2. Recreate a New Outlook Profile
There can be instances that your Outlook profile is corrupted, recreate a new Outlook profile to resolve the issue.
Step 1. In Control Panel, click Mail (Microsoft Outlook)> Show Profiles.
Step 2. Click Add button.
Step 3. Provide Profile Name and click Ok.
Step 4. Set new profile as default and restart Outlook.
Method 3. Repair Office 365 using Microsoft Fix It
Another way is to use Microsoft Fix It tool. It will automatically fix any corrupt files that might be causing the issue.
Here are the steps that you need to follow to repair Outlook 365 using Microsoft Fix It:
Step 1. Download the Microsoft Fix It tool.
Step 2. Double-click on the downloaded file to run it.
Step 3. Click on the Run button.
Step 4. Follow the prompts to complete the installation process.
Step 5. Once the installation is complete, launch the program.
Step 6. Click on the Start button.
Step 7. Follow the prompts to complete the repair process.
Step 8. Restart your computer and launch Outlook 365. Your account should now be working properly.
Method 4. Change your Firewall Settings
If you are using a third-party firewall application, then it might be blocking Outlook 365 from accessing the internet. You can try changing your firewall settings to see if that fixes the problem.
Here are the steps that you need to follow to change your firewall settings:
Step 1. Access the Run dialog box with Windows + R Keys.
Step 2. In the Run dialog box, type “firewall” and click OK.
Step 3. In the Firewall window, click on the Allow an app or feature through the Windows Defender Firewall option.
Step 4. Scroll down the programs list and find Microsoft Outlook. If it is not on the list, click on the Change Settings button.
Step 5. Browse for Microsoft Outlook and click on it.
Step 6. Click on the Add button and hit OK.
Step 7. Restart your computer and launch Outlook 365.
Method 5. Disable Third-Party Add-ins
Sometimes, faulty or incorrect add-ins may interfere in launching Outlook on Windows 10 system. Here’s how to disable the faulty add-ins:
Step 1. Launch Outlook> File> Options.
Step 2. Click on Add-ins, then select COM Add-ins and click Go.
Step 3. Select faulty or incorrect add-ins and click Remove.
Method 6. Using Microsoft Support and Recovery Assistant (SaRA)
If you’re experiencing any issues with Outlook on your Windows 10 system, there’s no need to panic. Microsoft Support and Recovery Assistant (SaRA) is an impressive tool that can help you resolve a wide range of problems, including connection, password authentication, and start-up issues.
This free application can quickly detect and fix issues with Outlook, Microsoft Office, Microsoft 365, and Microsoft Teams. Whether your Outlook is unresponsive or frequently crashes, this program can help you troubleshoot and fix the root cause of the problem with ease.
Method 7. Run ScanPST.exe
If any method doesn’t work, then there are chances that your Outlook data file is corrupted. Restore Outlook 365 PST using Inbox Repair Tool (ScanPST.exe). Here are the steps to do so:
Step 1. Locate and open ScanPST.exe.
Path: C:\Program Files\Microsoft Office\root\OfficeXX).
Step 2. Click Browse to select the PST file.
Step 3. Click Options and select any Log file option, then click OK.
Step 4. Click Start.
Step 5. Wait till processing completes.
Step 6. If there are any errors, click Repair.
Step 7. Repair completed, click OK.
Automated Tool to Repair Outlook PST (Recommended Solution)
There are many methods to repair Microsoft Outlook 365, but none can deal with highly corrupted PST file. In such case, Kernel for Outlook PST Repair tool comes in handy. It is the best PST repair software to repair and restore data from corrupt PST or password-protected files. You can save recovered PST data to DBX, MBOX, MSG, EML, TXT, RTF, HTML, and MHTML formats. It allows users to restore even large-sized PST files that are often not compatible with other tools.
Also, you can recover permanently deleted items and attachments from Outlook with the help of this Outlook repair tool. You can even migrate PST files to Office 365, email servers, and web email clients with the help of this software.
Conclusion
We have outlined the best methods for repairing Outlook 365 not working on Windows 10. All these methods are effective in resolving the issue. However, these methods are a little bit risky and time-consuming. To avoid risk and time, you can use our recommended tool as it has excellent features that can help you restore your corrupt or damaged PST files easily. The trial version of the software is also available for free download, so you can try it before purchasing the full version.
