I have had no problems using PC HealthBoost. In fact I am so glad I have it now. This software helps with many things such as performance, registry, speed, dll files, etc. I had an old computer in which I was receiving error messages in regards to my registry. I was getting very frustrated with it. I installed PC HealthBoost in which the install was very fast. It has a very user friendly interface so you can understand what is going on and know how to navigate within it. After this software detected my issues I proceeded to have it fix and repair my issues. I was so glad I did. Now I no longer receive error messages and my computer's performance and speed are right on track. I have told others about this software and in fact they are as pleased as I am. I want to say thanks for creating such good software.