FileMaid 

FileMaid will help you delete unused files from your file servers. Search by last access date or last modify date.
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PowerPrompt 

PowerPrompt will start a new command console. This console is running with System privileges and any program launched from this prompt will inherit System credentials. This gives you maximum access to your system so be careful.
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FreeFile 

FreeFile will free a file by finding the process that holds the lock, and allow you to terminate it.
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