Doing it yourself would help you save on cash that you would otherwise have to pay an expert. Jim said he would like it better to pay a repairman. I said to Jim, first look at ErrorNuker FREE PC Diagnostics tool homepage
You also get the chance to gather first hand information about your system and its problems. There are some obvious disadvantages though to choosing to diagnose registry errors yourself. Obviously you would have to be very skilled with computer technology. You have to be familiar with such terms as keys, sub keys and hives. You also have to meticulously look into each registry entry and back up the important ones one by one. If you make mistakes with handling your entries, you could lose valuable information or damage your system beyond your capacity to repair. Jim's brother in law told him to see.
More and more people have got in the last years problems with slowness of their pc, do you know why. Maybe the time has come for you to have a checkup, like a gator spyware checkup.