have quicken icon but can open quicken, shift right click does not help either
Close Quicken (or do not start it at all).
Use Windows File Explorer to locate and rename
your current Quicken data file. For example, if it's called Qdata.QDF rename it
Usually your file is located in your \Documents\Quicken folder.
done that start Quicken as usual from the Start Menu or Desktop Quicken
If Quicken cannot find your current data file during startup it should just
simply load the program and give you either a nearly blank menu screen or one
that has options to start as new user, restore from backup, etc.