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I had given a pen drive of mine to a friend with some data on it. He plugged the pen drive into the Windows 7 powered Acer netbook, didn't eject (unmount) it before pulling it out.

When I again plugged in my pen drive on his netbook or on my desktop, it shows that its write protected. Even in Ubuntu, it mounts as write protected.

I have read these posts and none worked:

  1. http://www.troublefixers.com/remove-write-protection-on-usb-pen-drive-or-memory-card-or-ipod/
  2. How to make USB drive or pen drive write protected?
  3. usb write protected!
  4. Remove the write protection from a USB flash disk

The Problems I'm facing:

  1. I have no write protection switch on the Pen Drive.
  2. I have no registry in the Registry Editor called "StorageDevicePolicies", I'm using Windows 7.
  3. I can't format it using EASEUS Partition Manager on Windows 7 or with gPartEd on Ubuntu.

Note: I have Windows 7, Ubuntu 11.10 and Mac OS X Lion available to me.

Is there any way to format the pen drive so I can use it again?

Or is the only way now, to throw it?

Community
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Arjun Bajaj
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  • I have a similar problem .http://superuser.com/questions/585577/not-able-to-use-pen-drive-after-cleaning-it-using-command-prompt/585602#comment718338_585602 or http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/disk-pen-drive-cleaned-using-command-prompt-not/1402d6b4-4423-4642-ab6b-cded7d770128?tm=1366641476303 – chndn Apr 22 '13 at 14:53