Idea of Error Icon
It's an exclamation point drawn inside of an equilateral triangle. The triangle is drawn with one side parallel to the ground, and the exclamation point is in the center of the triangle.
This is the Error icon for Windows 10
. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.