Delete StyleSheet from Print Preview Window

I saved a new StyleSheet named new after I changed certain parameters in the Print Preview Window. How can I delete this new StyleSheet?

I know how to overwrite a new StyleSheet, but here I want to delete it.

One more thing, how can I restore the default StyleSheet if I mistakenly overwrite it?

[Yan Zong]

do you figure this out?

[Kareem Elgindy]

Type ”prefdir” at the MATLAB command line to find out where your preference directory is located: 
>> prefdir 
Browse to the preference directory and go to the ”PrintSetup” directory and delete your created stylesheet.

[Yan Zong]

many thanks, my using the "prefdir", and deleting all temp files, it works

[Kareem Elgindy]

Glad to help.