0

I have dual boot Windows 7 and Ubuntu 16 with grub. They were working very well until I installed the last Windows update. The update had to restart at some point but as Ubuntu is listed first in the grub menu Windows didn't complete the update process. Right now I can neither access Windows partition nor access Windows OS. When I select windows in the grub I get only black screen and when trying to open the windows disk from Ubuntu I got the message in the attached screenshot.

Dialog box showing a long error message titled 'Unable to access "Windows7_OS"' and starting with 'Error mounting system-managed device /dev/sda'

I tried ntfsfix but never succeeded. please advise.

Eliah Kagan
  • 119,640
Alnour Alharin
  • 101

1 Answers1

1

Based on the image posted, it appears that the (Windows) recommended fix here is to use Windows chkdsk /f and then reboot to Windows twice. It is still recommended to use Windows tools to fix NTFS filesystem problems, even though almost all Linux systems can read and write NTFS without issues.

If Windows won't start at all, you may need to start the machine from a Windows Boot media or Rescue media -- but one with a Windows/DOS operating system, so that you have access to chkdsk. If you don't have bootable Windows media, you may need to remove the HDD and connect it to a working Windows machine to perform the recommended fix.

Zeiss Ikon
  • 5,248