Find and rename/delete database

Em Client will not open.  I get “database repairing verification failed”.  How can I find the data file to rename it or delete so that I can open and use a backup database?  Or is there a better way to do this?

Hello Josh,
the default database location in C:\Users%windows user account%\AppData\Roaming\eM Client
Renaming or deleting it will enable eM Client to startup with a clean database.