A computer is known for its speed and performance but what if the computer is running slow? Then it will be a headache which needs to be cured as soon as possible. You can fix the issue of the slow running computer on your own though it is recommended to take guidance from professionals. You can reach them at Dell Customer Service Phone Number. who are easy to connect all day long without any time and location constraints. There can be several reasons for your system to run slow: how you use your computer, software issue, corrupt OS or memory issue, outdated driver.