You can enable Trash on Windows partition by making yourself its owner.
Find out your user id:
$ id
Open the fstab file, which holds partition mounting configuration:
$ sudo gedit /etc/fstab
Find your Windows partition (the one of ntfs type). It will look like this:
/dev/sda3 /home/user/shared ntfs defauls,noatime 0 0
(Note, that it doesn't have to be /dev/sda3, and the mount point and options may differ).
Add uid=xxxx to its list of options, where xxxx is your user ID:
/dev/sda3 /home/user/shared ntfs defauls,noatime,uid=xxxx 0 0
Save the fstab file and unmount/remount the Windows partition or simply reboot the computer. If it doesn't help, you might have to also add your group ID as gid=yyyy.
Taken from here.