I have a problem with split memory hard drive on my laptop.

I cannot access new formated ext 2, /dev/sda3 hard drive, half the pc's memory is there.

(The other half that is accessible is the /dev/sda2).

There's a Lost and found folder in the /dev/sda3 partition. Cannot save, cannot add anything. Have tried to change the settings with GParted, to no avail.

please help!!