I have a windows installation on my system as well as manjaro and ubuntu (so technically triple boot), all of them installed on an nvme ssd. There are also 2 hard disks connected to the system. One of them behaves just fine, I can delete from and write to it. The second hdd however is read only. I disabled fast boot and hibernation under windows, ran chkdsk and found no problems. However, I still cannot write or delete from the drive when in manjaro.
When I run
sudo fdisk --list
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 2048 1953521663 1953519616 931.5G 7 HPFS/NTFS/exFAT
For the working drive, I get
Device Start End Sectors Size Type
/dev/sda1 34 32767 32734 16M Microsoft reserved
/dev/sda2 32768 1953521663 1953488896 931.5G Microsoft basic data
Partition 1 does not start on physical sector boundary.
EDIT: sorry I had switched the two drives, sdb is the one who is readonly, sda is the working one.
That is the partition type, and yes, that is probably why you can’t write to it, since it has an NTFS partition and NTFS is proprietary. To change it will require deleting the partition, recreating it and reformatting the disk. This can, however, cause Windows to lose access to the disk, as well as data-loss if the data hasn’t been backed up.
I couldn’t fix the issue but I managed to back up all the data then proceeded to format the drives. Both were like this, interestingly I could create some folders but could not create folders in some other folders, it was just a mess.