If you’re wondering what exactly is taking up all your hard drive space and not sure where to begin rectifying the issue, a disk analyzer can come really handy in such situation. These tools enable you to quickly discover large files on your computer and allow you to organize them to optimize your disk usage.
Disk analyzers also help you understand the file structure on your hard drive. One such app that I recently came across is Spyglass: a powerful disk analyzer for Windows that shows you a graphical representation of your disk space usage, along with some amazing visualization effects. It allows you to quickly switch between different directories and get rid of clone or junk files. In other words, Spyglass is a simple disk analyzer that doubles as an effective duplicate files remover
Spyglass is a free application and works on both 32-bit and 64-bit OS editions of Windows XP, Windows Vista, Windows 7 and Windows 8.