Waiting for a laggy, slow computer to perform a relatively simple task can be quite frustrating for anyone. Many things can cause the slowness of your computer, as a person continues to fill the hard disk with music & movies, create files, surf the web, install extensions and download programs a virtual detritus will build up that will affect the performance of your computer. You do have to ask yourself, why is my computer running slow? This guide will help you solve some of the problems and boost the performance of your pc. Close background programs Programs that run in the background usually cause a computer to run slow. You should disable or remove all start up programs and TSRs that start running as soon as you boot your computer. Some programs end up consuming a lot of memory, you can open up the task manager to check their status anytime and disable the ones that are putting excessive load on the pc. The Hard Drive is almost full Your computer can end up lo...