Windows XP External USB drive 'disk is full"

Schnitz

Honorable
Oct 2, 2013
1
0
10,510
I have an external usb drive (2tb) and anytime I try to save a file to it from photoshop I get this - "Could not save .... becasue the disk is full".
However if I right click on the drive in file explorer it shows that only 249gb is used and 1.57 TB is free.
I can copy files to the drive in file explorer but not save to it using photoshop or many other programs.