Dinalt
Banned
Don't think anyone's started a thread on this yet, but sometimes it's useful to be able to permanently delete files. (Especially if you don't want your other half seeing what you've been up to).Although you can just delete, or clear your Internet cache, files are still recoverable with the right software.
Sure Delete (Free)
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Will overwrite files with zeroes, making them very hard to recover.
Eraser (Free)
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Long running erasing utility, offers various levels of security when deleting files.
Crap Cleaner (Free)
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Not as secure as some, but automates Internet cache cleaning etc. Also looks for old/obsolete registry entries. (Just be careful what you delete though).
Clean Cache (Free)
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Not tried this one, but it's had good reviews (Check the homepage). Cleans out your Internet files.
Internet Sweeper (Free)
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Another Internet cache cleaner
