Speed up a slow PC without buying new hardware

If a once-fast computer has slowed to a crawl, you can’t really blame the hardware. Sure, you may be able to improve speed by adding RAM, upgrading the CPU, or replacing the hard drive with an SSD. But none of those solutions–all of which cost money–address the underlying problem. Your hardware isn’t underpowered. It’s overloaded. Check out this article from PCWorld.com