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

Windows Server 2025 must disable the Windows Installer Always install with elevated privileges option.

DISA Rule

SV-278121r1181069_rule

Vulnerability Number

V-278121

Group Title

SRG-OS-000362-GPOS-00149

Rule Version

WN25-CC-000430

Severity

CAT I

CCI(s)

• CCI-003980 - Allow user installation of software only with explicit privileged status.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> Always install with elevated privileges to "Disabled".

Check Contents

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\Policies\Microsoft\Windows\Installer\

Value Name: AlwaysInstallElevated

Type: REG_DWORD
Value: 0x00000000 (0)

Vulnerability Number

V-278121

Documentable

False

Rule Version

WN25-CC-000430

Severity Override Guidance

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\Policies\Microsoft\Windows\Installer\

Value Name: AlwaysInstallElevated

Type: REG_DWORD
Value: 0x00000000 (0)

Check Content Reference

M

Target Key

5719