A scene control affecting the visibility of model textures in the graphic display.
Access
Views tab 
Appearance panel Textures On or Textures Off
Use Textures On to manage the visibility of the texture aspect of Appearances while modeling, and to see the appearance of the component in its finished state. Textures On is the default setting
Use Textures Off during modeling tasks to remove the visual effect of textures.
Both commands affect all image textures, including textures that are more connected to modeling processes or materials, except for threads and decals.
Visual styles
Textures On is disabled when a wireframe visual style is selected and remembers the last used state and returns to it when a "solid" visual style is again used.
Application Options and Document Settings
You can modify the default settings and set them for per document or per session. See the options in Application Options Display Appearance, and Document Settings Display Appearance.