i had about 60 gigs free out of 270.
i can guess of about 40 gigs of space that was taken up, but that leaves 170 gigs of taken up space that i have no idea what is.
now that ive done this, as annoying as it was reinstalling drivers, applacations, relogging into everything, reaquanting myself, shit's better.
it's like giving my pc a high bran diet to clean up all the nasty parts. it literally feels faster and i have 150gigs of space free to use.
i wouldn't mind this being a yearly thing, but i did this because of an annoying problem mainly.
tldr, it was annoying but worth it.