"Why cant i transfer file form ubuntu 7.04 to windows xp?
 

Hi There, I'am new on Linux OS and i am using ubuntu 7.04, Im trying to copy paste a file to a windows XP workstation but an "access denied" error appears. what could be the problem, though i can access and copy a file.
I also tried this process on windows workstation and it works in both ways.
What could be lacking or missing in my configuration. Thanks!!!

Windows XP probably has its drive formatted as NTFS. Linux can read NTFS, but write support is currently unreliable, and may trash your NTFS filesystem. So ubuntu says "access denied". Microsoft aren't helping because they will not tell us how NTFS works.
Other ways to transfer the file: Use a windows partition formatted as FAT32.
Use a memory-stick formatted as FAT32
Welcome to LQ!

ntfs-3g is perfectly reliable in my experience. Make sure that it was installed. If it was, then it's most likely a simple matter of permissions. Have you got write permissions to the windows partition? Is it properly mounted? The entry in /etc/fstab should have these options:
defaults, rw,umask=0000,uid=1000,gid=1000

Reliable -yes-yes!
Safe - no-no!

Working on NTFS under Linux is not recommended. Structure may be distorted and thereafter NTFS may become unreadable under Windoze!

The OP said he is trying to transfer a file to a windows XP workstation, which could mean copying a file over the network rather than copying a file from an Ubuntu partition to a Windows NTFS partition.

Ah yes, of course, I completely overlooked the "workstation" part. I guess we'll need particulars first then.

Concur this statement! :)