Fix Access Error 3343: Unrecognized Database Format

In this Microsoft Access tutorial, I will show you how to troubleshoot and resolve the "Unrecognized Database Format" error, ensuring your databases open smoothly and function as intended. This also applies to the "Access has detected that this database is in an inconsistent state" error as well.

Erratum

• At time index 4:05 the slide should say "Delete the LDB or LACCDB file." Don't delete the ACCDB file. You kinda need that. Thanks to Sami for catching this one. 

Prerequisites

• Access Beginner 1

Links

• Backup
• Compact & Repair
• Troubleshooter
• Error Messages
• Fing Network Monitor
• Microsoft Article
• DevHut Article

Checklist

• Backup
• Compact & Repair
• Delete the LDB File
• Check Access Versions
• Move Back-End to Different Folder
• Import Objects into Blank New Database File
• Short Filenames with No Spaces
• Check Server for Disk Errors
• Make Sure Compression is OFF
• Test Network Speed
• Check Database File Size
• Check Free Disk Space
• Run Down the Troubleshooter
• Rollback Office / Windows Updates

Learn More FREE Access Beginner Level 1 FREE Access Quick Start in 30 Minutes Access Level 2 for just $1 Free Templates TechHelp Free Templates Blank Template Contact Management Order Entry & Invoicing More Access Templates

Resources Mailing List - Get emails when new videos released Consulting - Need help with your database Tip Jar - Your tips are graciously accepted Questions? Please feel free to post your questions or comments below or post them in the Forums.

Keywords

TechHelp Access, Error 3343, Unrecognized Database Format, Inconsistent State, Access database corruption, compact and repair, resolve error 3343, Access back-end file, backup strategies, database recovery, delete .LACCDB file, Access version consistency, import Access tables, server disk errors, decompile Access database, split Access back-end