When it comes to choosing software for scanning, TreeSize Free Portable is one of the better ones available in the market. It is easy to use as it has a very user-friendly interface. The program allows you to scan any type of drive including USB drives. The software scans your computer for free, no ads and no icons to disturb you while running the software.
Besides the free version of TreeSize, there is also a professional version for a very reasonable price. It can identify hundreds of files and folders, as well as several different types of file extensions like zip, rar, doc, lha and so on. In addition, it has a comprehensive report for each identified file or folder for a very thorough report.
A very important advantage of using this software is that it allows you to defragment your hard drive in order to free some more disk space. Defragmenting your hard drive allows you to organize files in a better way and make use of the available disk space more efficiently. When you defragment your computer, all files and folders take less disk space because all information is put together in a different arrangement. However, you have to run the program manually to do this, which is not really a difficult task, given that most PCs come with some sort of auto-defragmenter software package. However, if you can't afford this software, then there are several other defragmenters available in the market that you can use to free some valuable disk space from your storage device.