I couldn't have done it without putting all the comments together. 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". One of Thunderbird's core principles is the use and promotion of open and decentralized standards. If you can't choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen. There are three steps you can take to try to get Outlook working again.

Repair/Re-install Outlook 365, 2021, 2019, 2016, 2013, 2010, 2007, 2003

Your program worked fantastic, and I successfully converted the .ost into .pst having back my old e-mails.Later, you can divide a resulting file into several PST files, each being of a predetermined size.I couldn't have done it without putting all the comments together.Recovery Toolbox worked very well and relatively quickly.Hope this helps and this was definitely the true fix I was struggling to find.Find the Microsoft 365 app and right-click on it to see the available options.Follow the prompts to complete the repair process.Here are some of the reliable methods to restore Outlook 365 not working issue.

I need to convert a large .ost file to a .pst file to set up a new laptop. Recovery Toolbox worked very well and relatively quickly. Had to re-install windows.I want to recover all pst, and ost. My PST got corrupted as it grew too large.

How to repair outlook?

The only way to resolve Outlook stuck on loading fix 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. The steps to access the repair tool vary depending on your operating system.

Methods to Repair Outlook 365 in Windows 10: Best Resolutions!

How do I repair my Microsoft email?

If you’re experiencing any issues with Outlook on your Windows 10 system, there’s no need to panic. 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. Hope this helps and this was definitely the true fix I was struggling to find.

Online Repair

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 Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities.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. 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.

Do you see the message "This set of folders could not be opened"?

The Outlook Online Repair Service allows you to repair corrupted PST/OST files on any device (desktop, tablet, phone) with any OS (Windows, Android, macOS, iOS and so on). The PST Online Repair Service does not require Microsoft Outlook to be installed and does not need to have any third-party software installed on your device. 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. The file I was trying to repair, had nothing wrong.

Check for other processes running under classic Outlook

So, I used Toolbox recovery to convert the pst file in msg, ans I copied and paste the msg files in Outlook, and it worked perfectly. I wanted to send a large pdf file (20Mb).While sending I disrupted this process (turned off pc?). As a result I had an unclosed mail in my pst-file. As a result my pst-file was corrupted and my outlook could no longer be started/opened.This tool fixed PST-file. If you don't have a Windows computer with the desktop version of Outlook installed, then you can repair a corrupt PST file by using a special online service here.