Drives can be mounted using the disk management tool in such a way that their content appears in one folder. If you are wondering how to mount individual like this. You can do this without any disk management tool as they only recognizes whole drives. You can use a Windows System Internal command line tool called ‘junction.exe’ which you can download it from this link.
Prerequisite for the success of this tip: all used drives must be formatted with the NTFS file system. Also see to it that neither the source nor the target folder is open in another application, in Windows Explorer, for instance.
Open the archive and save the ‘junction.exe’ file on your system, preferably in the Windows directory, since files in it are automatically found when the command is called up. Then open the prompt and enter the following command in the command line: junction c:\project d:\data\project
Then, in the ‘Projects’ folder on drive C, Windows displays the content of the subfolder which has the same name, and which is located on drive D. If there is no such folder on drive C, the tool automatically creates it. You can always rename this folder or delete it to delete the link. Folders and data on drive D remain untouched.