Post Fail rooting

hi

I am new in all this rooting thing.Bought my first touchscreen htc desire 500 few weeks ago but dont like the blue homescreen, and other things.
So started to root few days back.I hope somebody can help me.I am stuck in unlocking the bootloader, whenever i am in the stage of getting the fastboot oem get identifier token i cant get it, the command prompt doesnt give the binary code.

any help please thanks