One of the failed sign-in windows showed a long string under a field labeled Microsoft Information Protection API. Running that value through the Entra admin portal revealed what we needed. At that point, the focus shifted to what was happening during authentication. The answer came from a closer look at the Microsoft Entra sign-in logs and a hidden dependency that I wasn’t aware of.

In this case, it might be easier to just create a new profile. Outlook has a bug where it repeatedly prompts you for your password, even after you've logged in. This slows down productivity and quite frankly is just a total nuisance. Just as your files can easily become corrupted, so can your Outlook Help with Outlook error messages profile. This usually happens when you've switched versions of Outlook but your profile did not update.

Still, like other apps, Outlook also runs into issues sometimes. A free demo version of the software is available to download. You just need to install the software and you are all good to run the software. With the demo version itself, you can recover and see the recovered data. When the exact reason for the error is not known you have to try multiple methods to fix Help with Outlook error messages the error. Here, we present you with distinct methods that can help to fix the error.

Generally, many programs and applications run simultaneously or in the background which can cause interruptions. Therefore, first, restart your system, and second, check the internet connection. Follow the given ways along with their steps to fix the error and access your files. 6) Open the downloaded file and follow the on-screen instructions to install Office 365 again. You can follow some troubleshooting steps to fix this Outlook crash.

However, for severely corrupted PST files, it’s Help with Outlook error messages recommended to use a third-party repair tool. In this regard, we recommend Kernel for Outlook PST repair tool to save your precious time. Problems with the device, connection to power, network issues, viruses or malware, oversized files, and improper shutdowns all cause the PST file to act up. The issue might be difficult to identify if you have multiple accounts and a long history with Office 365, Exchange, and Outlook.

Add a contact to your Favorites by selecting a contact in the list, and then selecting Add to favorites. When you add someone as a favorite in People, they'll also show up under Favorites in Mail, and the other way around, provided that the contact has an email address. Use the People page to find, view, create, and edit contacts and contact lists. To learn more about managing contacts in Outlook.com, go to Create, view, and edit contacts and contact lists in Outlook.com.

Solutions to Troubleshoot 'Out of Memory or System Resources' ErrorCheck Resource Usage. ...Restart and Update Outlook. ...Optimize System Resources for Outlook. ...Find and Remove Faulty Add-ins from Outlook. ...Increase the Size of the Memory Heap. ...Rebuild the OST File.Apr 7, 2025

Optionally, you can try to recover additional repaired items from the backup personal folder. You can use the Inbox Repair Tool (scanpst.exe) to repair corrupted Personal Folders (.pst) and Outlook Data (.ost) files. This is useful when your OST file is relatively big (more than 5 GB) and it would take a long time to recreate it. Also, it can be useful when you are getting errors when importing data from a PST file.

Use Tasks to create, manage, and track things you want to get done. You can learn more about the new and classic tasks in Outlook.com by going to Use To Do App to manage tasks in Outlook. Contact someone directly by selecting Start chat or Send email.

Most of these crashes come down to one thing – problematic data files. PSTs and OSTs act like Outlook’s memory banks. When they get too large, go corrupt, or are poorly configured, Help with Outlook error messages things start to break. This should resolve the issue of ‘Outlook keeps crashing’.

Therefore, if you installed your Outlook application in a custom location, you'd have to substitute '-g' for the custom location. Updating your Outlook may conveniently solve the issues you're experiencing. All you need to do is to check and install any updates for the app. If Outlook won't open, you can't check your incoming messages or send an outgoing one from your desktop. If you have logged in to your @live.com email address in the last 12 months but don't remember the password, you can try the Microsoft Recovery Form.

Again, check if Microsoft Outlook crashes when opening. If not, the cause of the error is something else. The simplest solution often resolves many software-related issues. Similarly, restarting your computer can clear temporary glitches and refresh your system’s resources. Support and Recovery Assistant performs diagnostic checks and returns potential solutions for you to try in order to resolve Outlook issues.

If not, you can try reinstalling Office 365 or repairing it. To sum up, the blog elaborated on all the major reasons for Microsoft Outlook keeps crashing problem. Furthermore, we learned six manual solutions to fix this issue. So, for a worry-free and risk-free conversion, using the professional tool is the optimum choice. I disabled all add-ins and started Outlook in safe mode but the crashing problem continued.