OK, so all 3 partitions were there and belong to windows, and they use about 162 Gb. Then there is free space with no partition on it of about 700Gb.
So, the question is, why did the Ubuntu install not find the free space?
Inthe step before the screen you showed, it may have asked whether to install on an existing partition, or whether to make a new partition on free space? You might have answered (wrongly) install on an existng partition.
The installer may have expected you to make a partition on the free space, before you went into the install step. Most installers force you thru this step. You have to 1. make a partition, 2. put a filesystem on it, usually ext3 or ext4, and 3. give it a mount point name (eg /).
You usually need to make a minimum of a root filesystem partition ( called /), and a swap partition.
So when you did step 4, you only made free space, not a partition.
Can we go back and try the ubuntu install again, and be careful to do the make partitions step, before you get to the install step?