my d drive is full how do i clean it and my hard drive

So my Pc has both virus and spyware, i’ve tryed every single imaginable program.AVG,McAffe, Ad-Aware,Registry cleaner and so on. So i just tough if their was a program that could clean my hard drive and only leave the windows operating system. If you any i would really appriciate if you would help me.I’ve gotten rid of the virus but now i got spyware which is very well known, DriveCleaner,Ultimate Cleaner and another bucnh of crap. thx for your help. Email me to rayquaza2007@yahoo.com. and thx again.

ive been advised to scan and clean up the hard drive ect ect but i havnt got a clue where to start?

What is a good and fairly easy way to clean the junk off your PC? If you use a lot of graphics that you keep on the hard drive, what is the best way to store them so they are close at hand, after you clean off your hard drive? Or is reformatting the only way to go?
Hey, no links for advertising your software, ok?

I would like to wipe out my hard drive and start new. I am wondering what exactly I need to load it all back on. Is there a way for me to save programs to a disk or flash drive to load back on later. What software do I need to restore the hard drive? I have a recover and applications/drivers dvd cd. Is this enough once I clear my hard drive to restore windows and the like back on it? Is there anything else that I need before I do this?