"some" may be the key here. How are you mounting the ntfs partition? Through nautilus?
i have noticed that some
files get deleted when i switch os's.
Do the files that are saved in Linux have any of the following characters in in their name: " * / : < > ? \ |
If they do then when you return to Windows they are ignored since Windows can't read them. If this is the case then there's a way to fix this by adding a correct line to fstab. We need some information though so please post the output of the following commands:
sudo blkid -c /dev/null