Most "speed boost" software just boosts you out of money. There is little software can do to speed a system up. If you have an old install of Windows then reinstalling will help as Windows tends to get bloated over time. I do a fresh install once a year to keep everything fast. Overall though an SSD will speed you up more than anything. Even my 2 year old slow by today's standards Vertex 2 will boot Windows in under 20 seconds.