If you want to move your email data from EML-based clients like Windows Live Mail, Thunderbird, or eM Client to Microsoft Outlook, you must convert your EML files to PST format. While converting a few emails manually is easy, the real challenge comes when you need to batch convert hundreds or thousands of EML files.

In this blog, you’ll learn the most reliable methods to convert multiple EML files to PST quickly, safely, and without losing any data.

Why Convert EML to PST?

Here are the most common reasons users switch from EML to PST:

• Migrating from Windows Live Mail or Thunderbird to Outlook
• Need to manage all emails in one PST file
• Want a more secure and stable email environment
• Outlook does not support EML files directly
• Need better search, storage, and backup options

Method 1: Manual Method to Convert EML to PST (Not Ideal for Batch Conversion)

Outlook does not offer a direct option to import EML files. Still, you can use a workaround if you only have a few emails.

Steps:

1. Open Outlook.
2. Drag and drop your EML file into an Outlook folder.
3. Outlook will save the EML file as an Outlook-compatible message.

Major Limitations

• Cannot convert multiple files at once
• Very slow for large email collections
• Attachments may not stay intact
• Formatting and metadata may break
• Not suitable for professional or bulk migration

Method 2: Import EML Files Using Windows Live Mail

Earlier, you could import EML files into Windows Live Mail and then export them to Outlook.
But:

• Windows Live Mail is discontinued
• Not available on new Windows versions
• Causes errors during export
• Not reliable for bulk migration

This method is outdated and not recommended anymore.

Method 3: Batch Convert EML to PST Using a Professional Tool (Recommended)

The safest, fastest, and most accurate method is to use a dedicated converter like Advik EML to PST Converter. This tool is designed specifically to handle bulk EML conversion without data loss.

Why Use Advik EML to PST Converter?

• Converts thousands of EML files to PST in one go
• Keeps email formatting 100% intact
• Preserves attachments, metadata, timestamps, and folder structure
• Supports EML files from Windows Live Mail, Thunderbird, Outlook Express, Zoho Mail, and others
• Works without Outlook installed
• Creates a clean PST file compatible with all Outlook versions
• Easy to use for both beginners and professionals

How to Batch Convert EML to PST Using Advik (Step-by-Step)

1. Download and install Advik EML to PST Converter.
2. Launch the tool and click Add Files / Add Folder.
3. Select the folder that contains your EML files.
4. Choose PST as the output format.
5. Pick a location to save the converted PST file.
6. Click Convert.

The software will quickly convert all EML files into a single PST file or multiple files, depending on your preference.

Final Thoughts

Batch converting EML files to PST can be difficult if you rely on outdated or manual methods. For safe, quick, and accurate migration—especially when handling a large number of emails—using a professional solution like Advik EML to PST Converter is the best choice.

It ensures your emails, attachments, formatting, and folder structure remain untouched while creating a clean PST file ready for Outlook.