How to write on HD?

[RHCA]

Helo an thanks 4 your answers. I am learning C and HTML so i thinked what better than knoppix in place from instaling software in 2 windows but when i try to save in to my HD it says that it cant write in to it. Anyone has an idea?

[OErjan]

ntfs support in linux is unstable, so writng to that is not wise, if you use a USB drive (pen...) with fat32 it would be easier.

just rightclick on icon choose mount, if it is not mounted already, that is signaled with a small green triangle in lower corner of icon.
now right click on icon again, in actions under that menu you can change to read/write.

[ndb]

You did not say in your post if your partition is NTFS or FAT. If it's FAT you should be able to write to it safely. If NTFS, I would not. In either case, you should have all important files backed upfirst, to cd/dvd/etc. If you're not sure, under Windows, you can click on 'My Computer', then right-click on C:. The resulting dialog box will show what tpye it is.