How to Restore an OST File on a New Drive?
Introduction
In this guide, you’ll learn how to restore an OST file on a new drive using both the manual method and professional software. We’ll also discuss the advantages and limitations of each approach.
We understand that, as your Outlook mailbox grows, the default system drive (usually the C: drive) can quickly run out of storage. Many users choose to move their Outlook OST file to another drive, such as the D: drive or an SSD, to free up disk space and improve system performance. However, simply copying an OST file to a new location doesn’t always work because Outlook associates each OST file with a specific Outlook profile. If the file isn’t moved correctly, Outlook may fail to recognize it or create a new OST file instead.
Why Restore an OST File to a New Drive? – Reasons Mentioned
There are several reasons why users move or restore their OST files to another drive, such as:
- Freeing up space on the system drive.
- Improving Outlook performance by using an SSD.
- Organizing Outlook data separately from Windows files.
- Preparing for a Windows upgrade or system migration.
- Preventing storage-related issues caused by large mailbox files.
Restore an OST File on a New Drive Using Automated Software
If you need to restore an OST file without relying on the original mailbox, CubexSoft OST Converter provides a flexible and reliable solution. The tool enables to read OST files and converts it into PST format. The PST file can then be stored on any drive and imported into Outlook. The tool is Windows and Mac Operating Systems compatible and it also offers demo option.
How to Restore an OST File on a New Drive using the Automated Software?
Step 1: Install the software
Download and install the tool on your computer.
Step 2: Browse and select the OST File
Launch the software and select the OST file you want to restore.
Step 3: Convert OST File to PST
Choose PST as the output format.
Step4: Specify a destination folder on your preferred drive, such as:
- D:\Outlook Backup\
- E:\Mail Archive\
- External SSD
Step5: Start the conversion process.
Click on the Convert button.
Step 5: Import the PST File into Outlook
After conversion:
- Open Outlook.
- Go to File > Open & Export.
- Select Import/Export.
- Choose Import from another program or file.
- Select Outlook Data File (.pst).
- Browse to the converted PST stored on the new drive.
- Complete the import.
- Your Outlook mailbox will now be available from the new storage location.
Benefits of Using Automated Software
- No Exchange Server connection required.
- Converts inaccessible OST files into another format like PST.
- Preserves folder hierarchy and email formatting.
- Supports large OST files.
- Maintains attachments and metadata.
- Allows selective conversion of mailbox items.
- Saves converted files to any drive or storage device.
- Simplifies Outlook data migration.
Learn How to Restore an OST File on a New Drive through Manual Method
The manual method works only if your Outlook account is still active and connected to the mail server.
Step 1: Close Microsoft Outlook
- Before moving the OST file, ensure Outlook is completely closed.
- Also, verify through Task Manager that no Outlook processes are running.
Step 2: Locate the Existing OST File
By default, the OST file is stored in:
C:\Users\Username\AppData\Local\Microsoft\Outlook
Locate the OST file associated with your Outlook profile.
Step 3: Copy the OST File to the New Drive
Copy (do not cut) the OST file to your preferred location, such as:
- D:\Outlook Files\
- E:\Mail Data\
- SSD Drive
Step 4: Create a New Outlook Profile
- Open Control Panel.
- Select Mail.
- Click Show Profiles.
- Choose Add.
- Create a new Outlook profile.
- Configure the same Exchange, Microsoft 365, or IMAP account.
- Outlook will attempt to synchronize mailbox data.
Step 5: Change the OST File Location
Depending on your Outlook version and account type, Outlook may create a new OST file automatically. After configuring the new location, restart Outlook and allow it to create or synchronize the OST file in the new drive.
Step 6: Verify Mailbox Data
After synchronization completes, verify that all mailbox items are accessible, including:
- Emails
- Contacts
- Calendars
- Tasks
- Notes
- Attachments
Limitations of the Manual Method
Requires an Active Exchange or Microsoft 365 Account: Without access to the original mailbox, Outlook cannot rebuild the data.
Cannot Use Orphaned OST Files: If the Exchange mailbox has been deleted or is inaccessible, Outlook cannot restore the existing OST file.
Outlook May Create a New OST File: Instead of using the copied file, Outlook often generates a brand-new OST file.
Unsynchronized Data May Be Lost: Locally stored emails that never synchronized with the server cannot be recovered using the manual method.
Frequently Asked Questions
Can I simply copy my OST file to another drive?
Copying the OST file alone usually isn’t enough. Outlook ties an OST file to a specific profile and mailbox, so simply moving it may cause Outlook to ignore the file and create a new one.
Is the software solution safe to use?
Yes, the suggested software can extract mailbox data while preserving folder structure, email formatting, attachments, and metadata.
Read more
Conclusion
Restoring an OST file on a new drive can help free up system storage, improve Outlook performance, and simplify mailbox management. If your Exchange or Microsoft 365 account is still active, the manual method allows Outlook to recreate and synchronize a new OST file in the appropriate location, although it has several limitations and may not work with orphaned files. For situations where the mailbox is unavailable or you need to preserve existing OST data, the above-mentioned software offers a more dependable solution. By converting the OST file, you can store your Outlook data on any drive and import it into Outlook whenever needed, ensuring continued access to your data.
