Scratch Disks Full- Photoshop Elements 7..How do I fix?

[srep]

Hi everyone, my Photoshop Elements 7 is telling me that the Scratch disks are full and I can't access to edit.. Need help quick.. Thanks in Advance

 

[glenn]

Go to your preferences and expand the size if necessary.

 

[glenn]

Go to your preferences and expand the size if necessary.