1)   PCPal 1.0.1026
PCPal is a free easy-to-use tool that notifies you about problems in your PC and helps you fix them. PCPal helps you detect and resolve issues in a wide range of categories, such as security, performance, network and printing

 2)   Perfect PC Optimizer 2009.81
All-in-one PC optimizer is simple and easy-use program to optimize your PC and fix computer problems like slow speed, blue and error screens and other annoying problems to maintain system health and security

 3)   PC Optimization Suite 4.51
Smart PC fixes registry errors, removes unnecessary files, and improves the performance of Windows-based computers. The software makes PC optimization easier for users of any experience level and provides an alternative to reformatting.

 4)   360Amigo System Speedup 1
If you think your PC is Slow, help is at hand. 360Amigo System Speedup is a new PC Optimization and Error repair utility that dramatically improves the performance of your PC.

 5)   360Amigo System Speedup Free 1.2
If you think your PC is Slow, help is at hand. 360Amigo System Speedup Free is a new PC Optimization and Error repair utility that dramatically improves the performance of your PC.