DennyBenny,
You need to look into disk cloning software. It's
fairly straight forward with another HD (harddrive) but I'm thinking not so
with a copying it to cd and back again. But, here's the thing, cloning
will make an EXACT copy (or image)of your drive and as such will copy any
corruptions, file system errors, disk defragmentation, and any and all
garbage that you would want to erase and re-install on a hard-drive for. So
it's pointless, unless the point is transferring your Operating System to
another HD or for a back-up. If you want to "clean" your Windows
installation then I suggest you do a reinstall.
P.S. You could try to look for a folder in the root of C: drive called i386
which are the original installation files. With the original product-key,
you would be able to re-install from that.