Found this excellent free software to find duplicate files on the computer and delete them.
Features
http://www.digitalvolcano.co.uk/content/duplicate-cleaner
* Find Duplicate Files by content
* Cleaner hard drives means faster performance
* Fast Scanning and accurate duplicate comparison (Uses the MD5 Hash algorithm)
* Deep scans music – locate duplicate music formats (MP3, iTunes, etc)
* Flexible search parameters
* Intelligent Selection Assistant
* Search home or networked drives
* Search multiple locations
* Export / Import results in CSV format
* View Path,Size and Date of files
* Large, resizable list window
* Image preview window
* Delete duplicate files to the Recycle bin
* Move duplicate files to a new location
* Turn duplicate file into hard links (NTFS file systems only)
* Protection for Windows and system files
* Supports multiple languages
* No Spyware,Adware or any other rubbish
* Free!
Tags: Windows