After a long use of you computer, Wise Disk Cleaner is the one that comes in handy. The application does a great job in cleaning out the registry junk and defragment the registry files to boost your PC. Wise Disk Cleaner is fast and safe when it comes to junk file cleaning. It has a powerful scan engine that safely locates the junk files in the system. To improve system performance, you can delete temporary and junk files, to increase the available disk space.