There was a change to the default mount parameters for NTFS partitions around maybe 10.04 or so - I can't remember exactly when. Before then all files would be 777 now all files are 600.
If this is an internal partition you can reproduce the way it was done back then by creating your own entry in fstab. Use the following template as a guide:
This will mount the NTFS partition with you as owner and all folders and files will have permissions of 777.
UUID=DA9056C19056A3B3 /media/Win ntfs defaults,nls=utf8,umask=000,uid=1000,windows_names 0 0
To find the correct UUID number for you partition run the following command:
Create the mount point:
sudo blkid -c /dev/null
If you have mounted the partition manually unmount it first then run the following command to mount it again with the new line in fstab:
sudo mkdir /media/Win
Note: If you only want it to be accessible and executable to you then change the umask to 077. this will make all files and folders 700:
UUID=DA9056C19056A3B3 /media/Win ntfs defaults,nls=utf8,umask=077,uid=1000,windows_names 0 0