Click the little arrow next to "Type" near the top of the file search
window. A list of all the types of files (and folders) in the search
will drop down. You can select anything on the list (Including File
Folders) to filter. You can also save the search.
Go to Start Run and type in "cmd" (without the quotes).
Navigate to the root directory (folder) by using the cd command eg. cd c:\
will take you to the root of drive c or cd:\windows will take you to the
windows director (folder).
Type in the command: "tree" without the quotes. If it is going to be a long
list, output to a file with the command
tree >filenameofyourchoice.txt