But the problem arises when you don’t know the correct way of doing it. No more password error boxes on startup or every ten minutes. Then the next Microsoft window will appear asking if you want to "Let this app (Tbird in this case) access your info 1 of 1 apps"...click "Accept". Follow the prompts to complete the installation process. Here are some of the reliable methods to restore Outlook 365 not working issue.

Method 1. Using Microsoft Quick Repair

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. There can be instances that your Outlook profile is corrupted, recreate a new Outlook profile to resolve the issue.

How to repair outlook?

After brainstorming two days and compiling all the suggestions that the commentors on the board I've finally found the right way to fix all the Microsoft email issues. That includes Live, Outlook, and Hotmail. One of Thunderbird's core principles is the use and promotion of open and decentralized standards.

Is classic Outlook frozen?

• There are three steps you can take to try to get Outlook working again.
• I couldn't have done it without putting all the comments together.
• You will see two options – Change and Uninstall.
• There can be instances that your Outlook profile is corrupted, recreate a new Outlook profile to resolve the issue.

If you’re experiencing any issues with Outlook on your Windows 10 system, there’s no need to panic. If a Microsoft 365 application such as Word or Excel isn't working correctly, sometimes restarting it will fix the problem. If that doesn't work, you can try repairing it. When you're done, you might need to restart your computer. This free application can quickly detect and fix issues with Outlook, Microsoft Office, Microsoft 365, and Microsoft Teams.

Common Issues Which Stop Outlook from Opening on Windows 10

Now, go back to the "account settings" that is still open showing the "incoming and outgoing" parameter boxes in Tbird. You'll most likely see a bright yellow box saying "unable to log-in at server"...IGNORE this and go ahead n click "Done". Occasionally, classic Outlook tries to run a process in the background. Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools can all be done in the background.

Method 4. Change your Firewall Settings

I couldn't have done it without putting all the comments together. A vast community of Microsoft Office365 users that are working together to support the product and others. Access the Run dialog box with Windows + R Keys. Restart office 365 troubleshooting guide your computer and launch Outlook 365. Your account should now be working properly. Hopefully T-bird will automatically find the proper configurations at this point.



In the Firewall window, click on the Allow an app or feature through the Windows Defender Firewall option. In the Run dialog box, type "firewall" and click OK. Follow the prompts to complete the repair process.

Repair your .pst file in classic Outlook

Check the status bar at the bottom of the screen to see if another process is running. If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities. To install the latest Windows and Office updates, click the link below. The steps to access the repair tool vary depending on your operating system.