You can repartition and reformat the disc in NTFS format (most modern Linux OS can read NTFS) or use a utility under Windows to mount the drive. [URL]#:~:text=DiskInternals%20Linux%20Reader%20is%20a,XFS%2C%20Hikvision%20NAS%20and%20DVR.  
Hi, I have installed (dual boot) Windows 10 and EndeavourOS (Linux) on the internal ssd of my Alienware18 laptop. When I press the power button of my laptop I then select the boot sequence to choose between launching Windows 10 or EndeavourOS. My ssd has 2 main partitions: -one with Windows 10 -one with EndeavourOS, encrypted, Btrfs with Grub.   I also have an internal hdd 1TB (non encrypted) in my Alienware 18 R1. When I use EndeavourOS I can access the 1 TB hdd. However, when using Windows my 1 TB hdd doesn't appear, so I can't access it. Any idea how to solve this problem? Thank you.
18 R1, internal HDD not recognized