Recently I determined it was really freaking annoying to have to type in my document size every time I wanted to do a web banner in Photoshop.

All my Google searches for how to edit the default list yielded nadda for Windows, so I did it myself.

1. Make sure PS is closed.
2. Navigate to Program Files/Adobe/Adobe Photoshop CSx/Required
3. Make a duplicate of “Default New Doc Sizes.txt” so it says “Copy of Default New Doc Sizes.txt” – Safety step so you don’t foul up.
4. Open the file “Default New Doc Sizes.txt” in your best text editor, preferably something like Notepad++.  Windows Notepad will screw it up.
5. In my case, I copied from line 33-38 and pasted a copy of this on line 40, changing “Default screen sizes” to “banners” and changing the sizes accordingly.
6. Save, close, and then restart Photoshop! See your new sizes listed!