Windows Vista was a deficient product that was released before all the major bugs were resolved. It suffers from poor compatibility, runs slow, is confusing to use, and is not reliable. Windows 7 resolves all of these issues. I can upgrade your Windows Vista computer to the new Windows 7 that is getting rave reviews from all corners. I have upgraded all my production computers to Windows 7 myself which I would not do if I didn't have confidence in the product. I can also install Windows 7 on computers running Windows XP which will greatly increase your security and will perform just as well provided you have a newer CPU and at least 1 Gig of memory.