I tried to install ubuntu and then try to partition on the above screen. I select my 1.7TB partition and click on (+) sign and created the new partition. after the installation my 1.7tb partition was missing. But my windows installation partition was ok even though it is on a same drive.
I tried to recover using diskinternals partition recovery and it gives me only jpg files with weird names. some of them are able to recover but most of the files are missing, So i wanted to know are there any possibility to get my data back?