How to Back up OST File? Here Are 3 Ways for You to Do that!

This guide explains how to back up your Outlook OST file. An OST file allows you to work offline with Microsoft Outlook, synchronizing with your Exchange server when a connection is re-established. Backing up this file is crucial for data protection.

Why back up your OST file?

• Prevent data loss due to corruption.
• Recover accidentally deleted items.
• Migrate your Outlook data.

How to back up your OST file: Three methods are detailed below.

Method 1: Using MiniTool ShadowMaker (Recommended)

This free backup software provides automated and incremental backups.

1. Download and install MiniTool ShadowMaker.
2. Select "Backup" and choose "Folders and Files" as the source.
3. Navigate to C:\\Users\\user\\AppData\\Local\\Microsoft\\Outlook and select your OST file.
4. Choose an external hard drive as the backup destination.
5. Click "Back Up Now."

Method 2: Using the Outlook Import/Export Feature

This method allows manual export of your data. Ensure you're logged into your account.

1. Open Outlook, go to File > Open & Export.
2. Select Import/Export, then Export to a file, and click Next.
3. Choose Comma Separated Values and click Next.
4. Select a save location for your exported file.

Method 3: Using the Outlook Archive Feature

This is a more complex method, suitable for users comfortable with Outlook's advanced features.

1. Open Outlook, go to File > Tools > Clean Up Old Items….
2. Click "Browse…" to select the files and folders you want to archive.

Choose the method that best suits your technical skills and needs. Regular backups are recommended to ensure data safety.

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