How to Troubleshoot MDE

MDE is a file format used by Microsoft Office Access 2010 to store compiled versions of standard MDA database files. If you cannot open an MDE file, use a built-in tool in Microsoft Office Access 2010 to repair any corrupted database information, or re-associate the .MDE file extension with Microsoft Office Access 2010 if repairing the MDE file does not resolve the issue.

Instructions

Repair Corrupted MDE File

1. Launch Microsoft Office Access 2010, then click the “Database Tools” tab on the top of the window.

2. Click the button labeled “Compact and Repair Database.”

3. Navigate to the location of the corrupted MDE file, then select it and click “Compact” to repair the file.

Fix MDE File Extension

1. Click the “Start” button, type “Associate File Type” into the search box and press “Enter.”

2. Double-click the “.MDE” file extension.

3. Select “Microsoft Access” from the list of programs and click “OK.”

References

• FileInfo.com: MDE File Extension
• Microsoft Windows: Change Which Programs Windows Uses by Default