I have a client who works in Access 2007 on an db stored as an .accdb file. Whenever I receive a copy of this file and open in Access 2010 I get “unrecognized database format”. Attempting to compact and repair gives that same error.
However I was present today when another colleague working with Access 2010 received the same emailed .accdb file that I was copied on and successfully opened the database without error. Forms, tables, queries all loaded for him without issue.
Anyone run into this before?
It turned out that AVG antivirus was corrupting my emails as it scanned them. When I disabled email scanning and rebooted the issue was resolved. After I made this post I had a hint when attached JPEGs started showing up with errors.