Basically, I was taught on how to create a root password using the \"mysqladmin -u root -p password\" command, this was done all through the windows command editor. Now, the
Just to add to the responses so far: In Windows 10, the data files are kept here...
C:\ProgramData\MySQL\MySQL Server [m.n]\data
There will be directories for each schema in your database. You will want to go inside the schema you are trying to drop, manually delete any superfluous files then try the drop command again.
Any workbench changes against a database will get stored in this location. For example, I had this error following a reverse engineering exercise on one of my databases and saving the changes which get stored in a .mwb file in this location.