SV-278080r1180946: Windows Server 2025 must prevent the display of slide shows on the lock screen. | Microsoft Windows Server 2025 STIG SCAP Benchmark

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Assessment Title

Rule Text

Windows Server 2025 must prevent the display of slide shows on the lock screen.

Description

Discussion Text

Slide shows displayed on the lock screen could display sensitive information to unauthorized personnel. Turning off this feature will limit access to the information to a logged-on user.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000381

References

DPMS Target Microsoft Windows Server 2025 DISA DPMS Target Microsoft Windows Server 2025 5719

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

# Windows PowerShell
# Reconstructed from oval:mil.disa.stig.windows2025:def:278080
# Windows Server 2025 must prevent the display of slide shows on the lock screen.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Verifies 'Prevent enabling lock screen slide show' is set to 'Enabled'
# registry_object (registry_test)
function test_1 {
  return (((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization').GetValueKind('NoLockScreenSlideshow').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization' -Name 'NoLockScreenSlideshow' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'NoLockScreenSlideshow') -eq 1))
}

if (test_1) {
  Write-Output "PASS"
} else {
  Write-Output "FAIL"
}

Assessment Script Powered by AISyntax-verified

A standalone PowerShell script to assess this control automatically. Review before running it in your environment.

Syntax-checked as valid PowerShell. Not executed here — running it for real needs the actual ms_windows_server_2025 target this check assesses.

# OVAL Definition: oval:mil.disa.stig.windows2025:def:278080
if(!(Test-Path -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\Personalization\NoLockScreenSlideshow")){exit 1}else{if((Get-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\Personalization\NoLockScreenSlideshow" -ErrorAction SilentlyContinue).NoLockScreenSlideshow -eq 1){exit 0}else{exit 1}}

Remediation

Configure the policy value for Computer Configuration >> Administrative Templates >> Control Panel >> Personalization >> Prevent enabling lock screen slide show to "Enabled".