While no one thing can fix every computer problem, turning your computer off and then on again can help to resolve a lot of minor issues. Issues with memory and with running programs not stopping are chief among those that can be fixed by rebooting your computer. Any issue which persists after a few reboots is most likely something a lot more serious and should be addressed by a competent technician.
If you are dealing with just such an issue and you would like somebody with 18 years experience to come to your home and resolve your computer problems please feel free to call me, Dave Bensman, at Bensman Home Computer Repair at 901-830-4362. I can come to your home and fix your computer while you wait.