You need to format the SSD, which is in / dev / sda. 60Gb needs to be allocated under Ubuntu, the rest is left under Windows. Now at the stage of choosing the markup, but there is such a mess to create, I do not want to touch the HDD.
Running the command sudo mkfs.ext4 /dev/sda returned /dev/sda is apparently in use by the system; will not make a filesystem here! /dev/sda is apparently in use by the system; will not make a filesystem here!