By terminal
1. check your volumes states, then remember the disk you wanna to give write permission. here we get "BOOT CAMP"
diskutil list
2. open or create /etc/fstab file.
sudo nano /etc/fstab
3. paste the text below in terminal, replace the "BOOT CAMP" with your disk name, if your disk name has space characters, use /040 replace them. then ctrl+X, Y