Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost).

Find solutions to common problems or get help from a support agent. Visit the small business help & learning page to learn how you can use Outlook and other Microsoft 365 apps and services in your small business. We love reading your suggestions on new features and feedback about how you use our products! To learn more about how to share your feedback, see How do I give feedback on Microsoft Office.

Users who had been working normally suddenly guide to repair Outlook problems received the CAA2000B error / AADSTS (after the token expired). Most Outlook problems can be resolved with proper troubleshooting and maintenance. Following the fixes above will help you keep your Outlook running smoothly and protect your productivity. We hope this guide proves useful in resolving your Outlook problems efficiently. Outlook accounts can have up to 100GB of storage per mailbox.

In System Configuration, if you select a check box, the related service or startup program runs when you restart the computer. If the check box is cleared, the service or startup program doesn't run when you restart the computer. When you start Windows normally, several applications and services start automatically and then run guide to repair Outlook problems in the background. A Selective Startup or "clean boot" process can help you identify problems that are caused by application conflicts. To keep up with new viruses as they're created, antivirus software vendors periodically provide updates that you can download from the Internet.

Due to the large number of affected users, the automated fix took time guide to repair Outlook problems to apply. Microsoft advised using a manual workaround to restore access more quickly. A notification will be sent once the incident is fully resolved. We can diagnose and fix several common Outlook connectivity issues for you. If our automated tool can't fix your issue, or you'd like to fix it yourself, see the next section. Sometimes, antivirus real-time scanning can slow Outlook down.

To avoid any issues, employees may be advised to switch guide to repair Outlook problems back to the classic version of Outlook. The dashboard's performance tab identifies potential performance issues and correlates with common root causes. This information can be used to inform support teams to assist in making appropriate decisions, such as changes to the application or upgrading the affected devices. In some cases, the ScanPST.exe freezes or fails to repair a corrupt PST file. This happens when the PST file you are trying to repair is large, severely corrupt, or encrypted.

Some customers may not be able to see their Profile, Account or Sign Out options when selecting their picture on the top toolbar. Let’s start with the solutions to fix these common Outlook errors. You have seen that we have discussed the various reasons why common Outlook errors happen. Furthermore, we will be going to describe to you the numerous Outlook Errors that are shown in MS Outlook and their fixes.

Configure your antivirus software to exclude Outlook files or processes from real-time scans to avoid interference. The AppData folder hosts a lot of files, including bookmarks and cached pages. This might be slowing down or overriding other commands in Outlook.

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.

It worked well and was fairly light-weight on system resources. Microsoft bought the company that made it and the product is no longer officially offered. However, you might still be able to find a download somewhere on the Internet. We love reading your suggestions on guide to repair Outlook problems new features and feedback about how you use our products! To learn more about how to share feedback, see How do I give feedback on Microsoft Office. You may notice that All, Unread , Mentioned and other sort and filtering options, such as By date, and Newest are missing in Outlook above your email list.

Or, you can disable any antivirus software add-ins guide to repair Outlook problems that are installed in Outlook. Outlook stores all your email messages, meetings and events, contacts, and tasks in data files. You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. I'm having an issue with one Outlook 365, the program open and get stuck at loading the user profile, any profiles.

Right-click the folder, and then click Properties to check your permissions for the folder. See the folder owner or your administrator to change your permissions. Outlook forwards meeting invitations to other attendees without anyone actually sending an update or forwarding an invite. This happens to accounts that are configured in the iOS Mail app. Another options is to use the Filter Email button on the ribbon.