Ashampoo makes good software. I’ve used WinOptimizer for many years, through many versions, and it helps my computer run smoothly. I use the features to clean web browser traces, broken shortcuts, and unnecessary files almost every day. When I first installed the program, I used the other features to optimize the system further. I don’t ever modify the registry, so left that alone. In the past, I used defragment too, but now it’s automatic in Windows. Everything I’ve tried with this program works well. Overall, a nice interface and a well-functioning program. Recommended.