These Outlook data (PST) files store user’s data, including email messages, calendars, tasks, journals, etc. By following these steps, you should be able to resolve the ‘Something is wrong with your data files’ error. Also, regain access to your email account and mailbox data. Once your task is done of locating the ScanPST.exe tool, kindly head to follow the below-given steps to fix Outlook data files (PST).
Read on to find out how to fix common Outlook problems below. This library of articles provides guidance to troubleshoot and fix errors that you may experience when using Classic Outlook for Windows. For a complete list of articles, browse the navigation pane on the left, or use the search box above the pane to filter by keywords and find help with a specific issue. If you're trying to set up an iCloud account, follow the steps in Add or manage an iCloud email account in Outlook. Then, each item in your calendar folder is checked for known problems that can cause unexpected behavior, such as meetings that seem step-by-step Outlook troubleshooting to be missing.
Maybe you've added a new program to your computer that doesn't get along with Outlook, or your system has a virus. Regardless of the specific cause, there are several key troubleshooting fixes to try that might help. This command clears any broken settings related to the navigation pane and can frequently fix startup issues. Below, we’ll guide you through a series of solutions, from simple, quick fixes to more in-depth repairs, to help you get Outlook up and running again. If it starts without any problems, you can check step-by-step Outlook troubleshooting the add-ins. Moreover, it will help you to get the answer to which add-in is causing the issue.
If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in is the source of the problem. Try these troubleshooting steps in the order presented here, from simple to more complicated.
How to resolve Outlook errors detected in an OST file?Method 1: Restart and open Outlook in Safe Mode. ...Method 2: Repair OST file using Inbox Repair Tool. ...Method 3: Delete and recreate the Outlook profile. ...Method 4: Repair OST file and convert OST to PST with EdbMails.
This means Outlook will run with limited features and without any add-ins enabled. After that, Outlook will check for and install any available updates. Once the Outlook update process is complete, reopen the Outlook application.
These issues might occur if a mailbox contains lots of folders or there are lots of items in any one folder. There's no hard limit to how many folders a mailbox can contain or how many items a folder can contain. However, you might experience decreased performance as the number of items approaches 10,000 calendar items, 10,000 folders, or 100,000 mail items per folder. Large numbers of recurring meetings or long-lived recurring meetings can also have an exaggerated effect on performance. One-time meetings have a relatively small effect, and long-lived, recurring meetings have a greater effect. A change that's made in an instance of a recurring meeting creates exceptions that are stored in the recurring meeting series.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Try steps 1 through 3 in order until the issue is cleared. If you see a .pst file instead, skip this fix and check fix 6 below. 5) Wait for the program to detect the latest version of Outlook, and then follow the on-screen instructions to update your Outlook.
ProcedureExit Outlook.Open a Run dialog box. ...Type Outlook /safe, and then click OK.If the issue is fixed, click Options on the File menu, and then click Add-Ins.Select COM Add-ins, and then click Go.Click to clear all the check boxes in the list, and then click OK.Restart Outlook.Jun 25, 2025
If you have email messages in an email program, you must import your email messages and addresses to the new user profile before you delete the old profile. If everything is working correctly, you can now delete the old profile. To manage your mailbox by reducing the size of the Outlook data file, see Reduce the size of Outlook Data Files (.pst and .ost). The above procedures will help you to resolve the Microsoft Outlook Stuck on Loading Profile error.
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, step-by-step Outlook troubleshooting things start to break. This should resolve the issue of ‘Outlook keeps crashing’.
The Scanost.exe tool is no longer available starting in Outlook 2010. We now recommend that you delete your offline Outlook Data File (.ost) and that you let Outlook redownload the information from the server that is running Exchange Server. Rohan Wiese is a Technical Content Writer at Aryson Technologies, specializing in databases, e-mail recovery, and e-mail migration solutions. To resolve this issue, delete your .ost file and that you let Outlook redownload the information from the server that is running Microsoft Exchange Server.