before u do that m8, to save u time an effort u should delete all the files u dont use ie films music pics ect.. then download ccleaner, ccleaer is really good and will get rid of allsorts u dont need and stuff u never new you had.. i did it on my m8s lappy for him the other day, it cleared 10gig of crap and his lappy runs like new now.. i use ccleaner every 3 days to keep my comp running smooth.. heres a link for the download m8 and use the first download thats the best 1... once youv got it downloaded (only takes a min or 2). if you need any help on how to use it let me no, altho its very easy to use http://download.cnet.com/1770-20_4-0.html?query=ccleaner&tag=srch&searchtype=downloads&filterName=platform%3DWindows,Webware&filter=platform%3DWindows,Webware