How to make shortcut key for our own

1)Select file or folder of which u want to make a shortcut key

2)Right click on it & Select Send to option & then Select Desktop(Create Shortcut).

3)Right click on a shortcut(of desktop) & then go to properties.

4)Now u can see a shortcut key

5) Change the value of shortcut key to "Anything" from "none".

that's it you can use desired keys of your own