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I've tried several external hard disks without any issues, but one particular external hard drive, after using it in windows 10, when I put it back into my ubuntu system, it won't let me access its contents.

When I opened in windows 10 I just added a new folder (that's not even the one mentioned in the error).

This is the message:

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My Ubuntu is 14.04, and the hard disk was already working with it, and it still does work in windows.

What can I do? It still get recognized. This is what shows me when trying to get to the disk properties:

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    Boot Windows, disable fast startup tenforums.com/tutorials/… . Shutdown (reboot often reverts the changes back to default). – user589808 Feb 10 '17 at 1:35
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I assume that the file "Backup Junio 2016" cannot be displayed/edited in both Windows and Ubuntu, and gives an error in both cases.

I assume that the disk is formatted/partitioned in GPT partition table format.

In Windows

I assume that the disk has a NTFS partition on it, and that it's NOT a bootable Windows external disk. If that's the case, attach the disk while in Windows. Then open an administrative command prompt window, and type chkdsk /f d: changing the "d" to the correct drive letter. This will correct any errors in the file system.

If it IS a bootable Windows external disk, then do this in Windows:

  • open the Power control panel
  • click on change what the power buttons do
  • click on change options that are unavailable
  • uncheck fast start
  • close the Power control panel
  • open an administrative command prompt window
  • type powercfg /h off (turns off hibernation)
  • type chkdsk /f c:
  • approve that chkdsk runs at next boot time
  • reboot Windows

In Ubuntu

Attach the disk while in Ubuntu. Open the Disks application from the Unity dashboard. Select the erroring disk in the left pane. Go to the "hamburger" icon in the top-right corner of the Disks window, and select SMART Data & Tests. Observe the data, and run the tests, and see if SMART can tell you about the condition of the drive.

Then, assuming that the drive comes up as /dev/sdb (or /dev/sd_whatever), open a terminal window and type grep sdb /var/log/syslog* (or grep sd_whatever /var/log/syslog*) and look for disk errors. If you need help interpreting what you see, upload the output text to http://paste.ubuntu.com and give me the URL and I'll take a look for you.

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