Use solid color for Start background

Supported on: At least Windows Server 2012, Windows 8 or Windows RT

Registry

HKLM SOFTWARE\Policies\Microsoft\Windows\DWM

Value name: DisableAccentGradient

Enabled: DisableAccentGradient = 1

Disabled: DisableAccentGradient = 0

Description

This policy setting controls the Start background visuals. If you enable this policy setting, the Start background will use a solid color. If you disable or do not configure this policy setting, the Start background will use the default visuals. Note: If this policy setting is enabled, users can continue to select a color in Start Personalization. However, setting the accent will have no effect.