How to manually change ext. HD drive letter, in Windows Server 2008 R2?

How one can manually adjust an outside hard disk’s commute letter (for model, from THEY WOULD; \ for you to G:\), in Glass windows Server 2008 R2

Go to begin -> handle panel -> administrative tools -> computer system management -> disk management

Here you are able to right simply click the commute and adjust the cover letter presuming you are able to unmount your disk.