FolderGrid WinMount can be installed like any standard program under Windows:
To uninstall or change a program
Open Programs and Features by clicking the Start button , clicking Control Panel, clicking Programs, and then clicking Programs and Features.
Select a program (in the case of FolderGrid WinMount simply select FolderGrid WinMount), and then click Uninstall. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.