I've got a laptop with a 256GB SSD and a 1TB HDD. The SSD is shared between elementary OS Juno and Windows 10. Within Windows 10 I can see my HDD and access/modify the files stored on it. However, I'm having some troubles with elementary. It appears that the HDD is not mounted. I use Linux primarily for system programming in C so there are some aspects of it that I know nothing about, one of them being the disk mounting and that kind of stuff. So I've looked around on some other forums but every problem other people have had was very specific so it didn't help me very much, and I don't want to mess something up by attempting to resolve the problem myself. Anyway, when I use sudo fdisk -l , this is what I get (images wouldn't embed for some reason, so I had to use links): https://imgur.com/lmrqqSy It's obviously /dev/sda that I'm looking for. lsblk gives this: https://imgur.com/2R402uT So from what I figure it has no mount point, which is the core issue. Question: How do I mount the HDD so that I can use it both in Windows 10 and elementary OS without any restrictions / conflicts? PS. I currently have almost no files on the HDD, so if formatting is necessary I have no problem with it. Thanks in advance.