Bruno: ... one other possibility just occurred to me, and it should have before, since one of my 3 above-mentioned computers, a Microsoft SurfacePro 3 is configured like this: ... If your computer is set up with Secure Boot you would have to perform a couple of extra steps in Linux to decrypt the drive (someone here has already mentioned encryption, but I am referring to the specific case of Secure Boot here ...) before being able to mount it. If that's the case, please confirm and I can dig up the steps to use ...

Well it is working correctly then if it locks them. I am still surprised that it allows another session though as that is dangerous.
I will look at that myself later when I get home and have access to a test machine.

How do I check if my linux has ntfs-3?

I did not find secure boot config in my BIOS, is this where it is configured?

I did restart my computer several times and restarted in linux and the drive is still unaccessible, I thought that disabeling fast boot would resolve the hibernation issue.

Hi Bruno,

To check if you have ntfs file-system support in Linux, your package manager should have a query option to confirm whether ntfs-3g is present. In Arch (my distro), this would be "pacman -Q ntfs-3g" (without the quotes). If I remember right and you're on Ubuntu, I have less practical exeprience there, but I believe it comes with a GUI-based interface for package management. Otherwise you can just try accessing another drive that you know is formatted as ntfs.

For Secure Boot, yes it would be in your BIOS (or UEFI firmware if that's what you have). So if you've looked and haven't found anything, let's assume that's not the cause of the problem.

One last stab at this hibernation possibility: for the sake of my understanding of what you have tried, have you booted back into Windows and used the "Restart" option when shutting down ? Sorry for asking again, but I can't seem to find any confirmation in the thread that you have specifically done this. Very important that you have shut down with "Restart" and NOT "Shut Down".

Cheers ;-)

Typing the following command in a terminal and hitting the enter key should produce results:

On Ubuntu 14.04, it produces:

Generally, if you try to mount a hibernated system from Ubuntu/Linux, you will get a message indicating it is in an unsafe state. Does this happen when you try a manual mount from a terminal?

The whereis command works, as yancek said, or the which command as I mentioned in post #23.

or
Did you test your Ubuntu USB key on your Windows 7 system at work, as you indicated you would do? Any results from that?

Thank you to all that helped me!

I finally found that my drive is indeed hibernated, I found that instead of clicking the drive on the desktop if I click on the drive in the file browser I get an error message that tells me that linux cannot mount the drive because it is hibernated.

The solution is to start a dos box as administrator and type "powercfg.exe /hibernate off.

I did it and can read my drive just fine now.

... had a feeling that hibernation was the issue ;-)

Happy you got it worked out - Cheers !

Very good news indeed!

Please mark this thread as solved under the "Thread Tools" menu (near the upper right of the first comment on each page). This will help others find your solution in the future.

Cheers!