Hi, I'm Robert and I'll be helping you with your financial software question.
first of all can you tell me exactly what happened in plain English. Uninstall would mean that the program is no longer there but the data is.
I think what you mean is that you just lost track of your data file.
To find that go to
file menu / file operations / find quicken file
that should give you a list of all quicken files on the drive. You can click on any of them to open them and you should be able to find your original file.
If you cant remember your password XXXXX a quicken file you can download and use the tool on this page to remove the password