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You can use the Inbox Repair tool (SCANPST.EXE) to diagnose and repair errors in your Outlook data file. The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good shape. You might want to use the Inbox Repair tool in the following situations: You receive a message that Outlook can't open your data file
The steps to access the repair tool vary depending on your operating system. Right-click the Start button (lower-left corner), and select Apps and Features on the pop-up menu. Select the Microsoft Office product you want to repair, and select Modify.
Choose Account Settings > Account Settings. On the Email tab, choose your account (profile), and then choose Repair. Note: The Repair option isn't available if you're using Outlook 2016 to connect to an Exchange account. Follow the prompts in the wizard, and when you’re done, restart Outlook.
The Microsoft Support and Recovery Assistant can help you automatically diagnose and fix a range of Outlook problems. You will need to download the application to your local computer, sign in with your home, work, or school account and select the issue you want help with.
Step 1 - Exit Outlook and start the Inbox Repair tool Automatically start the Inbox Repair tool. Start the Inbox Repair tool (Scanpst.exe). Then select Open or Run in the File Download dialog box, and follow the steps in the easy fix wizard. Once the Inbox Repair tool is started, continue with Step 2. (Can't start the Inbox Repair tool?)
The Microsoft Support and Recovery Assistant works by running tests to figure out what's wrong and offers the best solution for the identified problem. It can currently fix Office, Microsoft 365, or Outlook problems. If the Support and Recovery Assistant can't fix a problem for you, it will suggest next steps and help you get in touch with ...
Choose Account Settings > Account Settings. On the Email tab, choose your account (profile), and then choose Repair. Note: The Repair option isn't available if you're using Outlook 2016 to connect to an Exchange account. Follow the prompts in the wizard, and when you’re done, restart Outlook.
The Microsoft Support and Recovery Assistant (SaRA) uses advanced diagnostics to report known problems and details about your Microsoft Outlook configuration. Reported problems are linked to public-facing documentation (usually a Microsoft Knowledge Base article) for possible fixes.
Run a Microsoft 365 Diagnostic: There are Microsoft diagnostics that you can run to troubleshoot connectivity issues. The diagnostics perform automated checks to detect issues and provide possible solutions to fix them. Select Run Tests: Outlook User Connectivity to download and run the diagnostic. This feature requires a Microsoft 365 ...
In versions of Microsoft Outlook that are earlier than Microsoft Outlook 2016, version 1807, the Inbox Repair tool (Scanpst.exe) can run only a single pass to scan a damaged Outlook data file (.pst) or Offline Outlook data file (.ost). However, multiple passes are sometimes required to fix all errors.