Finding Duplicate Files with PowerShell

If you are like me, you create a lot of backups.  My most common backups are cutting and pasting every recognizable file that I may have created onto an external drive before routinely reinstalling Windows.  This often leads to me having many copies of the same file in multiple drives and folders.  I needed a way to scan for all duplicate files so that I could finally consolidate my backups into having unique files only.

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