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Possible Duplicate:
Tool to determine what has locked a file

On Windows 7 I am trying to delete a directory in Windows explorer, however when I try, it tells me a file in that directory is being "used by a process" and therefore cannot be deleted at this time.

How can I find out which process is using the file so I can terminate it in the task manager?

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marked as duplicate by slhck, Ƭᴇcʜιᴇ007, Nifle, DMA57361 Aug 25 '11 at 7:47

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Have you tried rebooting? – Ƭᴇcʜιᴇ007 Aug 24 '11 at 11:46

I use Process Explorer for this

In the Find menu, "Find Handle or DLL" will allow you to locate the offending process.

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The Sysinternals utilities really are good, no malware, no install, no 'crap', just pure utility. – noocyte Aug 25 '11 at 7:22

Download and use Unlocker application to see which process is locked your application.

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