Originally Posted by
monkeyapex
^^^ Not an expert either, so I think this is right in saying that having little left on your HD can result in things being slower as it takes longer for your computer to search through all the files. It's always good to leave quite a bit free just in-case. I'd suggest getting a bigger HD as most nowadays come in 500GB to 750GB usually.
There is an option to reformat your PC aswell but that would mean starting from nothing. All your data is gone. Google for more info and instructions. 
Not really. For things such as games they're given the exact directory. They're literally guided to where everything is.
Usually having a lot of separate files slows down boot up but that's it.
Last edited by RedPanda; Jan 2, 2015 at 09:44 PM.