The image don't show all C disk partitions. Also enlarge the Status column.
Before you play with disks, BACKUP. Backup everything.
Do you have the factory recover disks so if something goes wrong you can restore it?
I totally agree with TrashZone. Don't put Windows and Linux on the same drive.
Install Linux to another drive. Linux can be installed on a 32G USB flash drive.
Anyway, detach ALL your other HDDs from the MB before you begin Linux installation.