USB External HDD won't dismount

Xirix

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Feb 11, 2014
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Just a quick question, I have some large external storage USB HDDs and quite often when I'm done backuping my files to them it'll refuse to be safely removed because "A program is using it", I can leave it on for hours and it will still refuse.

What can I do when this happens, and does telling the computer to restart or shutdown 'safely' turn off the external HDD? I'm just worried about hurting my backup drives when I can't safely remove them.


On a side note, recent HDD fail events have made me paranoid, can you use Chkdsk on USB HDDs?
 

trekzone

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Mar 31, 2014
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Are you using any back-up software/application to do the back-up procedure? And yes you can use chkdsk on USB drives. You can also try to use Seatools and WD Diagnostic Tool to check errors and SMART info of your drive.
 

Xirix

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Feb 11, 2014
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No software, just straight up copying the files over and then deleting the old files, It usually only seems to refuse to dismount safely after doing a large backup, if I just use it for 10 minutes or so it behaves. And this is true for my 3 different externals.