I have never ran across any problems when using PC HealthBoost. This software has helped my computers in so many ways. Some issues that it helps with is performance, speed, registry, dll errors, etc. We had an old computer that ran very slow at all times. After I installed this software and discovered the errors I was having within my computer I allowed PC HealthBoost to fix and repair the errors. I am so glad I did because now my old computer is running very fast, the performance is awesome now, and my registry is all up to par. I have recommended PC HealthBoost to others as it helped me in which I think it can help others. If you ever have questions in regards to this software Customer Service is always available to help in any way. It is good to know the company that made this product goes above and beyond to help their customers and has products that are efficient and works well.