Since you did not specify a path the database file will be stored in the "current directory" of the process which created it. To "search" for the file you can use something like this from a command prompt: `dir <drive>:\My1stdb.db /s/b` substituting in turn for `<drive>` the letter one by each of every drive attached to your computer. Eventually you will uncover the location of the file. eg: `dir c:\My1stdb.db /s/b` then `dir d:\My1stdb.db /s/b` and so on and so forth until the file is found.