I am using TeXstudio to edit my code. Currently I have all my files saved onto my desktop (bad plan I know). I want to move them into a folder, but I cannot work out how to do this without TeXstudio, having a fit at me!
File management is a matter of the operating system. Hence your question is off topic here. I suggest to consult the integrated help of your operating system or refer to a corresponding forum.
Creation of folders and movement of files is usually done by the file manager of the operating system.