SPInstallPrereqs: No windows features installed on Server 2025

Problem description

There is a bug in the code where OS server level is selected. This results in no Windows features beeing installed on Windows Server 2025 if you install SPSE.

The bug is in the line below. There should be no dollar sign after Select-Object:

$OSServerLevel = Get-ComputerInfo | Select-Object $OSServerLevel

Verbose logs

[[SPInstallPrereqs]InstallPrereqs] Checking status now
[[SPInstallPrereqs]InstallPrereqs] File not blocked, continuing.
[[SPInstallPrereqs]InstallPrereqs] Version: SharePoint Server Subscription Edition
[[SPInstallPrereqs]InstallPrereqs] Getting installed windows features
[[SPInstallPrereqs]InstallPrereqs] Checking windows packages from the registry

DSC configuration

SPInstallPrereqs InstallPrereqs
        {
            IsSingleInstance     = "Yes"
            InstallerPath        = "..."
            OnlineMode           = $false
            SXSpath              = "..."
            DotNet48             = "..."
            MSVCRT142            = "..."
            PsDscRunAsCredential = $SPSetupAccount
        }

Suggested solution

Remove dollar sign so code looks like this:

$OSServerLevel = Get-ComputerInfo | Select-Object OSServerLevel

SharePoint version and build

SPSE 16.0.19725.20210

Operating system the target node is running

OsName               : Microsoft Windows Server 2025 Standard
OsOperatingSystemSKU : StandardServerEdition
OsArchitecture       : 64-bit
WindowsVersion       : 2009
WindowsBuildLabEx    : 26100.1.amd64fre.ge_release.240331-1435
OsLanguage           : en-US
OsMuiLanguages       : {en-US}

PowerShell version and build the target node is running

PSVersion                      5.1.20348.5499                                                                                                                                                                                                                                                                       
PSEdition                      Desktop                                                                                                                                                                                                                                                                              
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}                                                                                                                                                                                                                                                              
BuildVersion                   10.0.20348.5499                                                                                                                                                                                                                                                                      
CLRVersion                     4.0.30319.42000                                                                                                                                                                                                                                                                      
WSManStackVersion              3.0                                                                                                                                                                                                                                                                                  
PSRemotingProtocolVersion      2.3                                                                                                                                                                                                                                                                                  
SerializationVersion           1.1.0.1

SharePointDsc version

SharePointDSC 5.7.1   C:\Program Files\WindowsPowerShell\Modules\SharePointDSC\5.7.1\SharePointDSC.psd1

Start at the SPInstallPrereqs InstallPrereqs entry point and inspect the Get-ComputerInfo pipeline that assigns OSServerLevel. Verify the selected property on Windows Server 2025, then validate that the prerequisite installation detects and installs the required Windows features. Use any existing InstallPrereqs tests or validation available in the repository.