How to Repair Outlook and Outlook 365?

Running into trouble while opening Outlook is the worst way to start your day. Don't worry, with this article, you will be able to repair Outlook with some common troubleshooting methods. In case you have a corrupt PST file causing this issue, you can easily repair Outlook PST files with advanced PST repair software by Remo. Irrespective of the severity of the issue, you can repair Outlook by the end of this article.

Written by Tony Landry / Updated on September 26, 2025

Microsoft Outlook is one of the best platforms to manage, plan and collaborate your work. Faulty Outlook application could be due to virus, errors in program files or corruption in Outlook data files. Hence repairing Outlook becomes crucial as it holds information like emails, meetings, attachments, tasks etc. A crashing or freezing Outlook should be repaired to avoid any halts in your work and regain access to all your mails, calendar and notes. However, repairing Outlook can involve the multiple troubleshooting methods depending on the source of the problem. Read through the following sections to learn effective ways to successfully repair Outlook on all the versions including 2021, 2019, 2016, 2013 and 2010.

How Do I Repair Microsoft Outlook?

  1. Specialized PST Repair Software
  2. Microsoft Office Repair
  3. ScanPST.EXE

Here are three solutions that can help any Outlook user repair their Microsoft Outlook. The first solution is an automatic repair tool that can repair even the severely corrupt Microsoft Outlook files. The second and the third solution talks about using in-built options like Office Repair and ScanPST.exe, which can be useful to fix minor issues.

Method 1: Repair Outlook Using Remo Outlook PST Repair Tool

Remo Repair Outlook PST is a best-in-class tool to help Outlook user repair their corrupt or damaged Outlook data files easily.

Remo repairs severely corrupted or extremely damaged PST files and recovers Outlook data items like emails, contacts, notes, reminders, etc., as well as Outlook attributes like subject, Cc, Bcc, rules, settings, customizations, etc.
Moreover, the tool is compatible with all older and newer Outlook and Windows OS versions.

In order to repair outlook, download and install the Remo Repair Outlook software and follow the below mentioned steps.

1. Download, Install, and launch the Remo Repair Outlook PST Software

Launch the Remo Repair Outlook PST.

2. Select Preferred PST Import Method

Select one of the three options-

  • Open Default PST File: This option allows you to directly access and choose from the default Outlook storage location.
  • Select PST File Manually: This enables users to manually select their files using the Browse option.
  • Find All Your PST Files: This option will seek and display all available Outlook data files from which the user can choose.

Remo Repair Outlook PST Main Screen

After choosing an option, click on Next to continue.

3. Choose Scan Type

You get two choose between the following two options-

Normal Scan: Suitable for Outlook files that have lower levels of corruption.

Smart Scan: This option is capable of repairing files with severe corruption and can even retrieve deleted items such as notes, calendars, notes, etc.

4. Select Destination Folder

You can use the Browse option to select a destination path. Your healthy Outlook file will be exported to this location after the repair process. After selecting the destination location, click on Repair to begin the repair process.

Select location to save repaired Outlook

5. Preview Repaired PST File

After the PST repair process, you can use the Outlook-styled browser to preview the results. If you are happy with what you see, you can activate the tool and save your healthy PST file.

Method 2: Repair Outlook 365 with Microsoft Office Repair

This tool is used when there is an issue with the application and its program files. In order to fix your Outlook application, you can follow the instructions mentioned below:

  • Open the Windows menu bar and click on Settings.
  • Access the Apps Tab and click on Installed Apps.
  • Right-click on Windows icon and select Apps and Features from the pop-up.
  • Modify option to repair Outlook

  • Select Microsoft Office and click on Modify.
  • Choose Quick Repair and click on Repair button to start the repair process.
  • Quick repair option to repair Outlook

  • Restart the computer after the repair process and the application will be ready to use.

If the Quick Repair option does not work, you can try the Online Repair option.

  • A notification saying We’ll download files to repair your installation will appear. Click repair to start the repair process.
  • Post completion of the Outlook 365 repair process, a notification saying Office is installed now will appear.
  • Click Close to end the process.

Now Open your Outlook and login with your email address of Office 365. This way you can repair Outlook 365 on your Windows easily.

Note: Choosing Online repair option will make you lose all your Outlook settings and customization.

Method 3: Repair Outlook with Inbox Repair Tool

The Inbox Repair Tool is a built-in utility that is useful in fixing Outlook data files. The tool is very effective in fixing headers of the corrupt PST files that are crucial to running the application. You can repair your PST files using ScanPST.exe by following the instructions below-

  • Locate ScanPST using the pathways given below-
  • Outlook 2019

    • 32-bit Version:C:\Program Files (x86)\Microsoft Office\root\Office19
    • 64-bit Version: C:\Program Files\Microsoft Office\root\Office19

    Outlook 2016

    • 32-bit Windows: C:\Program Files (x86)\Microsoft Office\Office16\
    • 64-bit Windows: C:\Program Files\Microsoft Office\Office16\

    Outlook 2013

    • 32-bit Windows: C:\Program Files (x86)\Microsoft Office\Office15\
    • 64-bit Windows: C:\Program Files\Microsoft Office\Office15\

Locate scanpst.exe

  • Open Scan PST and select PST file using the Browse option.
  • After selecting the File click on Start to begin the scanning process.
  • Browse and import repaired Outlook file

  • After the errors have been identified, select a destination path for the fixed file and click on Repair.
  • Select path to save repaired PST file

The above-mentioned troubleshooting step might help you fix the issue. However, there are possibilities that the utility might fail in fixing critical errors such as fixing PST header file corruptions. Hence, it is recommended you make use of a PST repair tool to repair your corrupt Outlook PST file.

Conclusion

The Microsoft Inbox repair tool can be used to repair Outlook in case of minor corruption. As the article indicates, the possibility of repairing Outlook is very low and the chances of data cannot be denied. However, in case you are stuck in a situation where the Inbox repair tool has failed to fix Outlook issues do not worry. You can always depend on Remo Repair Outlook software and fix the Outlook problem in no time.

Frequently Asked Questions

You can’t directly launch Outlook in repair mode, but you can repair it through Windows. Go to Control Panel > Programs and Features > select Microsoft Office > Change > choose Repair.

Outlook repair options are in the Office installation settings. You’ll find them under Control Panel > Programs > Programs and Features > Microsoft Office > Change > Repair. Alternatively, you can use the built-in Inbox Repair Tool (ScanPST.exe) to fix issues with minor corruptions in Outlook data files (.pst or .ost). Otherwise, a professional Outlook repair tool like Remo Repair Outlook PST can be used.

First, restart Outlook and check for updates. If issues continue, run the built-in Office Repair tool. You can also create a new Outlook profile or run the Inbox Repair Tool (SCANPST.exe) for data file errors.

For advanced repair and best results, use Remo Repair Outlook PST.

Quick Repair fixes common issues without needing the internet. It checks for missing or damaged files and replaces them quickly, while keeping your settings and data safe.

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