If you can access it on Windows, that’s a good thing and all you need is a disk repair there. If you cannot access it even on Windows, you’ll need file recovery (and another 4TB disk).
However, note that there is a good chance for NTFS disks to get corrupted on Linux if you unmount them without getting the notification that indicates it’s safe to remove the disk.
So I really recommend you to find a temporary disk (or buy a new one) and copy everything to it and format your disk as a Linux file system of your choice and move your files to it, before you get a real headache with NTFS (talking out of experience).
Also note that, it’s possible for NTFS disks become inaccessible if fastboot option is enabled for Windows on BIOS, if so disable it.