you can control and enable, disable, or change the frequency of, Automatic Save. from OPTIONS command >> Open and Save tab>> File Safety Precautions, select the Automatic Save check box. also by SAVETIME system variable you can edit your time .
Imad Habash
![EESignature EESignature](http://autodesk.i.lithium.com/t5/image/serverpage/image-id/1272565i464DC3DC646B4F11/image-size/original)