In this tutorial we will learn some basic and advanced techniques that will help to create an attractive Windows Vista Wallpaper.
Create a new file that would have
1280x1024 px and
100 dpi. It must be painted in black color.

Then select this instrument

to represent a circle in the middle of the picture to be.
Blending Options-Gradient Overlay
Gradient’s parameters:
Blending Options-Stroke