UltraDefrag is a small yet powerful disk defragmentation tool with a simple and intuitive user interface. It's designed to optimize the performance of your computer by arranging scattered files on your hard drive in a contiguous manner. It is a valuable tool for users looking to squeeze every ounce of performance out of their hard drives.

The cache files/folders of almost all software will be placed on the C drive (system partition), and many of them are not allowed to be changed. Over time, this will not only lead to less and less space on the C drive, but also seriously affect the system performance, especially for computers that use SSDs. For web browsers, it is cumbersome to manually transfer the path of its cache folder. In this case, Cache Relocator can simply solve this problem.

Operating system will produce a lot of junk files and use trace files after a long time of use, thus affecting the running speed of system and making it be prone to expose user privacy, so it is necessary to timely clean them up. In the field of system garbage cleaning, you may first think of the celebrated CCleaner, but in fact there is another system garbage cleaning edge tool that is not inferior in any respect - Wise Disk Cleaner. It's an entirely free alternative for CCleaner, developed by WiseCleaner (智慧清理) from China.

File fragmentation on disk significantly slows down the file access (read/write) speed, especially in working environments where source code libraries and compilations are frequently updated. So defragmenting software is one of the common tools that computers must use. There are so many defragmenting programs in the market - commercial, free, or open-source. Among them, Diskeeper and PerfectDisk, both with a long development history and solid technologies, are recognized leaders - any other similar applications pale by comparison.

First of all, you need to know that RAM has a maximum read/write speed of 100 times that of SSD and 200 times that of HDD. Therefore, when the physical memory is large enough, we can use some tools to create a virtual disk partition in the memory to specially store some frequently used programs and files (mainly temporary files generated by operating system or web browser), thus significantly improving the running speed of OS and software, and extending the service life of HDD and SSD.