Backup Emails from Outlook to Hard Disk Drive (HDD) or Solid-State Drive (SSD)

Backing up Outlook emails is slightly more complex than other providers because there are three different "Outlooks": the Classic Desktop App (paid Office version), the New Outlook for Windows (free replacement for Mail app), and Outlook.com (web version). The backup method depends entirely on which version you are using. Below are the specific methods for each.

Method 1: Classic Outlook Desktop App (The Gold Standard)

If you use the traditional paid Outlook application (part of Microsoft 365 or Office 2019/2021), you have the easiest route. You can export everything to a single .PST (Personal Storage Table) file.

Step 1: Open Export Wizard

• Open Outlook and click on File in the top left corner.
• Select Open & Export > Import/Export.

Step 2: Choose Export Type

• Select Export to a file and click Next.
• Select Outlook Data File (.pst) and click Next.

Step 3: Select Folders

• Click on your email address at the top of the list to ensure all folders (Inbox, Sent, Archive) are selected.
• Ensure the checkbox "Include subfolders" is ticked.
• Click Next.

Step 4: Save to Hard Drive

• Click Browse and select your External Hard Drive or SSD as the destination.
• Name the file (e.g., "Outlook_Backup.pst") and click Finish.
• You can set a password if you want, or just click OK to skip it.

Method 2: Outlook.com / Web Users (The Thunderbird Route)

If you use the free Outlook.com via a browser, you cannot "download" emails directly. The "Export Mailbox" feature in settings takes up to 4 days to send a download link. The faster way is to use a free desktop client.

Step 1: Enable POP/IMAP

• Login to Outlook.com via browser.
• Go to Settings (Gear Icon) > Mail > Sync email.
• Ensure "Let devices and apps use POP" is set to Yes.

Step 2: Sync with Thunderbird

• Download and install Mozilla Thunderbird (Free).
• Add your Outlook.com email and password. Thunderbird will auto-detect settings.
• Wait for all emails to download to the client.

Step 3: Export to Hard Drive

• Install the "ImportExportTools NG" add-on in Thunderbird.
• Right-click your Outlook folder in the sidebar > ImportExportTools NG > Export folder.
• Select your External Hard Drive. This creates a permanent, offline copy of your emails in MBOX format.

Method 3: "New Outlook" for Windows (The "Export" Feature)

Microsoft is replacing the Mail app with "New Outlook." This version recently added an export feature, but it behaves differently.

How to Check: If your Outlook has a "Pre" tag on the icon or looks like the web version, you are using New Outlook.

The Steps:

• Go to Settings (Gear Icon) > General > Privacy and data.
• Look for the Export mailbox button.
• Click Export.
• Warning: This does not download immediately. Microsoft prepares the file on their server, which can take up to 4 days.
• Once ready, they will email you a download link. You can then click that link to save the file to your Hard Drive.

Method 4: Single Email Backup (Drag & Drop)

If you only need to save a specific important email (e.g., a tax invoice):

• Open the Outlook Desktop app.
• Minimize the window so you can see your Desktop or Hard Drive folder.
• Click and hold the email from the list.
• Drag it out of Outlook and drop it into your folder.
• This creates a .msg file which can be opened on any computer with Outlook.

Summary

• Classic Outlook Users: Use Method 1 (PST Export). It is instant and reliable.
• Web / Free Users: Use Method 2 (Thunderbird) for immediate backup.
• New Outlook Users: Use Method 3 if you are willing to wait a few days for the download link.