I'm trying to connect to a personal database in ArcGIS 10.2 that contains work that I've spent the last two weeks working on but I am now receiving an error:

Failed to connect to database. An underlying database error occurred. Unrecognized database format 'F:\streets.mdb'.

Operating system: Windows 7, Database type: personal, Parent Directory: Networked

I'm really hoping there is a solution to this problem. Any suggestions on how to overcome this issue?

EDIT Just noticed there is an associated LDB file that is currently in the folder with the database. If I understand correctly an LDB file is some sort of lock that should disappear once you have closed the file you are working with. Could this be the source of the issue?

closed as off-topic by PolyGeo Feb 4 '17 at 5:37

This question appears to be off-topic. The users who voted to close gave this specific reason:

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  • Looks like your trying to connect to a person geodatabase (.mdb) You state your are working in a file geodatabase (.fgb) – If you do not know- just GIS Sep 26 '14 at 15:23
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    What operating system are you using? Are you using a personal geodatabase (.mdb file) or file geodatabase (.gdb directory)? Is the parent directory local or networked? How frequent are your backups? Please update the question (vice answering in comments). – Vince Sep 26 '14 at 15:29
  • You are right. I meant personal geodatabase. – rspencer38 Sep 26 '14 at 16:17
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    I would almost bet that you recently upgraded to a x64 office. if so, the only solution I have found. Which I don't really like that much. but a fix is a affix as long as it doesn't break something else. I downloaded AccessDatabaseEngine.exe and ran it. You might think you would want the x64 version but alas it doesn't fix the problem. This is also true when you try to open an excel file – Brad Nesom Sep 26 '14 at 16:46
  • I would delete the ldb file. – Brad Nesom Sep 26 '14 at 16:47