1-abc.net Drive Space Organizer is capable of analyzing disk space usage to identify the files and folders taking up the most space on the disk. This way, you can figure out the items you want to delete or back up to external drives to free up space.

The user-friendly interface is based on a standard window that asks for a folder to investigate. It highlights the top five largest items, reveals their folder size, and executes files on double click by default.

The analysis task shouldn't take long, depending on the size the target directory. It automatically sorts the files and folders in the results list by their size in descending order, giving you the possibility to go deeper within directories and view sizes using an Explorer-based tree view. The measurement unit can be changed (KB, MB or GB).

More details can be obtained to find out the name, format and exact size of each item in the list, along with the name, containing folder and timestamps of a specified file.

One or more selected files can be sent to the Recycle Bin or permanently deleted via the right-click menu. However, this doesn't apply to folders. Meanwhile, the results list can be saved to file as a project, or printed.

Lastly, 1-abc.net Drive Space Organizer enables you to create a list with files and folders to monitor and automatically analyze whenever the program is fired up, at Windows startup, or at a custom time frequency (set minutes).

It didn't put a strain on the computer's performance in our tests, using low CPU and RAM. No error dialogs popped up and it didn't hang or crash. Analysis jobs were carried out rapidly.

To sum it up, 1-abc.net Drive Space Organizer offers an intuitive approach toward verifying disk space distribution to discover the largest files and folders. However, the price of the registered edition is not justified when taking into account the features provided by the tool.