When you delete a file it will normally not be actually deleted, it is just moved to the Recycle Bin. You can then 'undelete' the file and so restore the file from the bin back to its original location.
When you are re-organizing and tidying up your disk one of the first things to do is to look at what is in the bin. Windows® Explorer gives you the basics but Disk Space Chart lets you analyze the bin's content in more detail. If you still want to keep files in the bin in case you may decide you need them then the chart will indicate which files are taking the most space.
Disk Space Chart looks at one disk drive at a time, it shows all the space allocated for that disk rather than in Windows® Explorer, where all the disk's recycle bin contents are jumbled up together.
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