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F: is not accessible. the parameter is incorrect (external 3TB drive)

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#1 Sylveon Fetish

Sylveon Fetish

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Posted 06 February 2015 - 05:36 PM

I have a 3 terabyte hard drive that now gives an error message

F: is not accessible. the parameter is incorrect
after I inserted a USB flash drive that caused all other USB devices plugged in to disconnect and very slowly reconnect, including the ones on my 7 port hub. I tried changing the drive in all other ports, hub or not, same error message. I have about 2.5 terabytes used on the drive that I don't want to lose. please help

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#2 GeePee29


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Posted 08 February 2015 - 01:49 AM

I suspect this drive could be on the way out.

Best bet is to use a version of ubuntu that you can boot from a memory stick and and copy the drive contents

Then boot to windows again and run chkdsk f: from a command line and see if it reports any problems.

If it does, then run chkdsk /f /r /x

This will fix, hopefully, any problems but if the disk is badly corrupted you may lose some/all data

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