Wise Registry Cleaner (WRC for short) concentrates on registry cleaning, optimization and defrag, can safely and quickly scan, find the most junk registry data and clean it up. Sure there are so many similar tools, but in the end you will find its effect is more obvious and professional and is well received by beginners and professionals.
The function of Windows built-in registry editor is oversimple and unskillful, so for advanced users who often need to change the registry settings, modifying registry really became a headache thing. Therefore, the appearance of such powerful and secure advanced registry editor - Registry Workshop is particularly helpful.
It is necessary to do defragmentation to hard drive at fixed period, in order to maintain its read/write speed. Windows has built in an "Optimize Drives" already at an earlier time, but its defragment speed and effect are really difficult to satisfy users. So many more powerful third-party disk defragmenters get their markets.
MyDefrag (formerly known as JkDefrag) is a free disk defragment and optimization tool, based on the Microsoft standard disk defragment API, which can thoroughly defrag the hard disk, has a good compatibility and does not damage data, full-automatic and very easy to use.