STIGQter STIGQter: STIG Summary: Microsoft Windows Server 2025 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

Windows Server 2025 User Account Control (UAC) must be configured to detect application installations and prompt for elevation.

DISA Rule

SV-278236r1182199_rule

Vulnerability Number

V-278236

Group Title

SRG-OS-000134-GPOS-00068

Rule Version

WN25-SO-000420

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> User Account Control: Detect application installations and prompt for elevation to "Enabled".

Check Contents

UAC requirements are not applicable for Server Core installations (this is the default installation option for Windows Server 2025 versus Server with Desktop Experience).

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\

Value Name: EnableInstallerDetection

Value Type: REG_DWORD
Value: 0x00000001 (1)

Vulnerability Number

V-278236

Documentable

False

Rule Version

WN25-SO-000420

Severity Override Guidance

UAC requirements are not applicable for Server Core installations (this is the default installation option for Windows Server 2025 versus Server with Desktop Experience).

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\

Value Name: EnableInstallerDetection

Value Type: REG_DWORD
Value: 0x00000001 (1)

Check Content Reference

M

Target Key

5719