Auslogics Disk Defrag is a great program for disk defragging. Lets dwell into the need to defrag. Fragmentation is caused by making and deleting files/folders, installing new software, and downloading files from the web. When you save something on your hard drive it doesn't save it in one place, it saves parts in the first available space and continues to save parts until it is fully saved. When you delete a file the space it was in is still there until a piece of a file fills that hole. This process is called fragmentation which leaves your computer being slow and could eventually crash your PC. So in order to keep this from happening, you need to defrag(join these pieces of files/folders to the same place) your computer regularly. Now this is where a system utility tool comes in handy like Auslogics Disk Defrag. Auslogics interface is very clean and easy to use. All you have to do is choose a hard drive and statistics are displayed and one click starts the defrag process. It is very fast and a HTML report is prepared after it's completed.Learn more or Download it