I have a friend that has a PC running VISTA that is 2 or 3 years old and has NEVER had any sort of cleaning. No disk clean-up, defrag...nothing! He says there are business files and some "important stuff" but not sure where it is. I told him I'd help clean it up, but on the ride home I realized I'm not sure where to start. I was going to download Adv. systems care 4, Ccleaner and maybe Malwarebytes but it would probable take hours to run. I'd really like to help him out but... lets be real. Any ideas where I could start?