I installed Linux mint 17 'Qiana' Cinnamon 64-bit on a Hp-Pavilion  Ts-15 not book,  cori5 without overriding or deleting the existing OS of Windows 10, while installing I tried to chose the last choice of disk partition something else bUT it doesn't work, so I choosed the last choice virtual or something like this  after rebooting the PC I can't find the Windows 10, also the other partition (D) in windows that contain my all data, I went to see if the HD is deleted but I founded UNKNOWN I tried to repair windows with a Bootable USB but it say free space = 0 mb.Please anything useful 
Can't find windows OS and it's partitions wit all data
boot;partition;dual boot;system recovery