How to Fix Outlook 365 Issues on Windows 10?

Adarsh Manjhi
Adarsh Manjhi

Updated On - June 25, 2024

Summary: This article will give you information on how to repair Outlook 365 on Windows 10. Outlook 365 is a part of the Office 365 subscription. Sometimes, users get errors while using the software, which can interrupt their workflow. We have suggested some solutions to repair Outlook 365 with the additional use of the recommended Outlook PST Repair tool, which is Recoveryfix for Outlook PST Repair.

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In Office 365, you can work together on documents in real time and share mailboxes, calendars, contacts and other information.

Office 365 has the same desktop programs in Microsoft Office Suite, such as word, excel, PowerPoint and Outlook.

Outlook VS Outlook 365

Outlook Web App (aka OWA) is a web-based mail client for subscribers of Office 365 for Business and Exchange Online. Also sometimes called “Outlook for Office 365.” In contrast, Outlook.com is a free web-based mail account, previously known as Hotmail.

Sometimes, it fails to respond, does not open, or shows errors, like ‘Failed to launch’, etc. Since MS Outlook is important for sending or receiving emails, we are providing solutions. Moreover, if you are still unable to use Outlook, it can happen due to corrupt PST files. Let’s move forward with the reasons and solutions for fixing Outlook 365 issues.

Reasons for Outlook 365 Issues on Windows 10

Some of the reasons for Outlook 365 issues are mentioned below:

  1. Installation of programs containing viruses: Installation/extension of unknown /unsafe applications may affect your Outlook.
  2. Corrupt Outlook profiles: It can cause issues with email synchronization, sending/receiving emails or using certain features.
  3. Outdated Windows/Outlook version: Using outdated versions of Windows or Outlook may cause performance issues and compatibility issues.
  4. The Outlook data file (.ost/.pst): It can cause Outlook 365 to crash and display an error message.
  5. Navigation pane issues: Folders within navigation pane are expanding/collapsing on their own at random times.

Different methods to repair Outlook 365

Let’s see some easy and effective ways to repair Outlook 365 on Windows 10

Method 1. Restart the computer and Outlook

If Outlook is not working perfectly on the system, you can restart your computer and the Outlook application. Sometimes, restarting the device and the program can solve the problem.

Method 2. Run Outlook in Safe mode

When Outlook can’t start or can’t work correctly on your computer, you can try to start Outlook in Safe mode.

  1. Go to Start, open the Run application, and type in ‘Outlook/safe.’
  2. Then press OK.click on OK
  3. Note: – If asked, choose your Outlook profile, and enter your Outlook credentials.

Method 3. Repairing Microsoft Office

A universal solution for fixing Outlook is to repair Microsoft office. It may help you to fix this Outlook issue. Follow the steps mentioned below to repair your MS Office:

  1. Open the search bar in the Start Menu, type appwiz.cpl, and click on OK.press OK
  2. Choose Microsoft Office from the list and then click on the Change option.
  3. Now select the Quick Repair option and click Repair.Click Repair
  4. Now, the repair process will start.
  5. After the completion, restart your Microsoft Outlook application.
Method 4. Reinstall the Office application

When Outlook 365 application is not working correctly, you can try uninstalling and reinstalling the Office application. Through this process, you may get rid of corrupted files causing this issue.

  1. First, you close the Outlook 365 application.
  2. In the window, type “appwiz.cpl” & click on the OK button.OK button
  3. On the Programs and Features window, find Microsoft Office 365 from the list of installed programs and click on Uninstall.click on Uninstall
  4. Follow the process to complete the uninstallation process.
  5. Download again and install the latest version of the Office 365 desktop application.
  6. Open Outlook 365 and enter your login credentials. Then your account will be in working condition.
Method 5. Repair Office 365 using Microsoft Fix It

If uninstalling and reinstalling Outlook 365 doesn’t resolve the issue, you can use the Microsoft Fix It tool to repair it by automatically fixing any corrupt files. Follow these steps to repair Outlook 365 using Microsoft Fix It.

  1. Download the Microsoft Fix It tool.
  2. To launch the downloaded file, double-click on it.
  3. Press the Run button.
  4. To finish the installation process, follow the instructions.
  5. Start the application when the installation is finished.
  6. Press the Start button.
  7. To finish the repair procedure, follow the instructions.
  8. After restarting your computer, open Outlook 365. Now, your account should be working correctly.
Method 6. Change your firewall settings

If Outlook 365 is blocking internet access due to a third-party firewall application, you can try changing your firewall settings to see if it resolves the issue.

  1. Access the Run dialog box with Windows + R Keys.
  2. In the Run dialog box, type “firewall.cpl” and click OK.type firewall.cpl and click ok
  3. In the Firewall window, click on the Allow an app or feature through the Windows Defender Firewall option.click on the Allow an app or feature through the Windows Defender Firewall
  4. Scroll down the programs list and find Microsoft Outlook. If it is not on the list, click on the Change settings button.find Microsoft Outlook, if not in the list, click on the Change settings
  5. Browse for Microsoft Outlook and click on it.browse Microsoft outlook and click on it
  6. Click on the Add button and hit OK.
  7. Restart your computer and launch Outlook 365.
Method 7. Using Microsoft Support and Recovery Assistant (SaRA)

Microsoft Support and Recovery Assistant (SaRA) is a free tool that can help to resolve various problems with Outlook on Windows 10, including connection, password authentication, and start-up issues. It can quickly detect and fix problems with Outlook, Microsoft Office, Microsoft 365, and Microsoft Teams, ensuring troubleshooting and resolving the root cause of the problem. You can download it from here.

Method 8. Repair corrupted profile

Sometimes corrupted profiles are the reasons for Outlook 365 issues. Follow the steps mentioned below to fix this issue.

  1. Open Outlook and navigate to file.
  2. Choose Account settings >Account Settings.
  3. Go to email tab, choose your account(profile), and then choose Repair.
  4. Restart Outlook.
Method 9. Disable Add-ins

Sometimes faulty add-ins are the reasons for the existence of this error. Follow the steps mentioned below to remove faulty add-ins:

  1. Open Outlook then navigate to File.
  2. Click on Options then tap on Add-ins.
  3. Choose the COM Add-ins options from the dropdown list.
  4. Click on Go.in Add ins choose COM Add ins and click on go
  5. Click the checkbox to remove all add-ins from the COM Add-ins panel. Once you’ve chosen the add-ins, click the Remove column after that.
  6. Restart your Outlook.

Note: If all these above methods don’t work, there is a huge possibility that PST files will be corrupted to a high level. We have mentioned a solution below regarding the corruptness of PST files.

Method 10. Repair Outlook PST files

You can repair your PST files using Recoveryfix for Outlook PST Repair. It is an easy way to fix many Outlook problems. You can recover and save emails to a new healthy PST, MSG, EML & DBX. You can even repair large PST files without losing their originality. It is compatible with all Outlook and Windows versions. You can even repair large PST files without losing their originality. It is compatible with all Outlook and Windows versions.

Salient features:

  1. Repair corrupt PST files.
  2. Recover deleted PST emails.
  3. Split large PST files.
  4. Saving recovered PST data to email servers or location.
  5. Remove ‘Top of personal folder ‘from repair.

Conclusion

We hope the above informative discussion will help to solve your problem. We have described some easy and effective ways to repair Outlook 365 on Windows 10 efficiently. If the above ways don’t work, go through our tool, Recoveryfix for Outlook PST Repair. It is an excellent way to recover corrupt Outlook PST files. It is so simple to handle that even a non-technical person can use it easily. So, try this and come out of the problem.

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