Blending Options-Stroke
Gradient’s parameters:

Select the
Ellipse Tool (U) and draw a flare inside the circle.
Fill 0% on the layers.
Blending Options-Gradient Overlay
Gradient’s parameters:

Using the usual
Pen Tool (P), try to create now the famous Windows logotype.
Fill 0% on the layers.
Blending Options-Outer Glow