This cases happened when I accessed a data partition, which is ntfs type, with windows 10. I forgot why, maybe I accidentally used the sleep mode or what. But when I came back to Linux mode and access that partition as a data partition, it was read only.
I search around and one possible caused is windows lock the partition when entering the sleep mode.
So the solution when we back to Linux is using this command :
#sudo ntfsfix /dev/sdx
Do it in the console/ terminal. It will display some process there and don’t forget to do the umount first. After it succeed, mount it back