Windows must elevate all applications in User Account Control, not just signed ones.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-16008	WN08-SO-000081	SV-48259r2_rule	ECCD-1 ECCD-2	Medium

Description
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures whether Windows elevates all applications, not just signed ones.

STIG	Date
Windows 8 / 8.1 Security Technical Implementation Guide	2015-03-09

Details

Check Text ( None )
None

Fix Text (F-41394r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Only elevate executables that are signed and validated" to "Disabled".