How to mount hard disk with both read and write permissions?

My hard disk partition (NTFS) is mounted with the only read writes.
I have the fix which I have to do every time I restart:

sudo ntfsfix /dev/sda1
sudo mount -o rw /dev/sda1

Does anybody know how to make this permanent?

You will need to create a manual fstab entry as per the ubuntu wiki

https://help.ubuntu.com/community/MountingWindowsPartitions

Great, thank you!
Solved it with adding a parameter rw in fstab.