Automates installation of System Center Configuration Manager.

Install-SCCM.ps1

<#	
	.NOTES
	===========================================================================
	 Created with: 	SAPIEN Technologies, Inc., PowerShell Studio 2016 v5.2.123
	 Created on:   	6/24/2016 10:24
	 Created by:   	Colin Squier <Hexalon@gmail.com>
	 Filename:     	Install-SCCM.ps1
	===========================================================================
	.DESCRIPTION
		Automates installation of System Center Configuration Manager.
#>

[CmdletBinding()]
Param (
	[switch]$Uninstall = $false,
	[switch]$SCEP = $false
)

<#
	.SYNOPSIS
		Returns the path of the executing script's directory.
	
	.DESCRIPTION
		Sapien's implementation of the variable $HostInvocation
		causes a conflict the with the system's variable.
	
	.EXAMPLE
		PS C:\> Get-ScriptDirectory
	
	.NOTES
		Work around for handling Sapien's custom host environment.
#>
function Get-ScriptDirectory
{
	if ($null -ne $HostInvocation)
	{
		Split-Path $HostInvocation.MyCommand.path
	}
	else
	{
		Split-Path $script:MyInvocation.MyCommand.Path
	}
}

If (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole(`
		[Security.Principal.WindowsBuiltInRole] "Administrator"))
{
	Write-Warning "You do not have Administrator rights to run this script!`nPlease re-run this script as an Administrator!"
	Break
}

$Option = New-CimSessionOption -Protocol Dcom
$Session = New-CimSession -SessionOption $Option -ComputerName $env:COMPUTERNAME
$OS = (Get-CimInstance -ClassName Win32_OperatingSystem -CimSession $Session)
$OSVersion = $OS.Version
$scriptDirectory = Get-ScriptDirectory
$Source = (Split-Path -Path $scriptDirectory -Parent)
$PackagePath = (Join-Path -Path $Source -ChildPath "ComputerSetup\SCCM2012R2Client")
$File = "ccmsetup.exe"
$Version = "5.00.8325.1000"
$Product = "System Center Configuration Manager"

$FullPath = Join-Path -Path $PackagePath -ChildPath $File

$SCCM = (Get-WmiObject -Namespace "Root\CCM" -Class SMS_Client)

if ($Uninstall)
{
	if (!($null -eq $SCCM))
	{
		$InstalledVersion = $SCCM.ClientVersion
		
		Write-Verbose -Message "Installed $Product version is $InstalledVersion"
		Write-Verbose "Stopping ccmexec service"
		Stop-Service -Name ccmexec | Out-Null
		Write-Verbose "Removing SCCM configuration file"
		Remove-Item -Path $ENV:WinDir\SMSCFG.ini | Out-Null
		Write-Verbose "Removing $Product client"
		$Removal = Start-Process -FilePath "`"$FullPath`"" -ArgumentList "/uninstall" -Wait -Passthru -NoNewWindow
		$ExitCode = $Removal.ExitCode
		Write-Verbose -Message "$Product uninstaller exit code: $ExitCode"
		Write-Verbose "Removing `"HKLM:\SOFTWARE\Microsoft\CCMSetup`" from the registry"
		Remove-item -Path "HKLM:\SOFTWARE\Microsoft\CCMSetup" -Recurse | Out-Null
		Write-Verbose "Removing `"HKLM:\SOFTWARE\Microsoft\SMS`" from the registry"
		Remove-item -Path "HKLM:\SOFTWARE\Microsoft\SMS" -Recurse | Out-Null
		if ($ExitCode -eq 0)
		{
			Write-Verbose -Message "Uninstall was successful."
		}
	}
	else
	{
		Write-Verbose -Message "$Product has already been removed."
	}
	break;
}

if (!($null -eq $SCCM))
{
	$InstalledVersion = $SCCM.ClientVersion
	
	Write-Verbose "Installed $Product version is $InstalledVersion"
	
	if ([version]$InstalledVersion -ge $Version)
	{
		Write-Verbose "$Product version $InstalledVersion or later already installed."
	}
}

if ($OSVersion -ge '10.0')
{
	$Arguments = "/skipprereq:WindowsUpdateAgent30-x64.exe /USEPKICERT SMSMP=cvgwpsccm02.ga.afginc.com CCMHOSTNAME=config01.gaig.com SMSSITECODE=PRI SMSCACHESIZE=20480 CCMFIRSTCERT=1 DNSSUFFIX=ga.afginc.com /NoCRLCheck"
}
else
{
	$Arguments = "/USEPKICERT SMSMP=cvgwpsccm02.ga.afginc.com CCMHOSTNAME=config01.gaig.com SMSSITECODE=PRI SMSCACHESIZE=20480 CCMFIRSTCERT=1 DNSSUFFIX=ga.afginc.com /NoCRLCheck"
}

if ($null -eq $InstalledVersion -or [version]$InstalledVersion -lt $Version)
{
	Write-Verbose "Stopping ccmexec service"
	Stop-Service -Name ccmexec | Out-Null
	Write-Verbose "Removing SCCM configuration file"
	Remove-Item -Path $ENV:WinDir\SMSCFG.ini | Out-Null
	Write-Verbose "Removing any existing version of client"
	$SCCM = Start-Process -FilePath "`"$FullPath`"" -ArgumentList "/uninstall" -Wait -Passthru -NoNewWindow
	$ExitCode = $SCCM.ExitCode
	Write-Verbose "$Product uninstaller exit code: $ExitCode"
	Write-Verbose "Removing `"HKLM:\SOFTWARE\Microsoft\CCMSetup`" from the registry"
	Remove-item -Path "HKLM:\SOFTWARE\Microsoft\CCMSetup" -Recurse | Out-Null
	Write-Verbose "Removing `"HKLM:\SOFTWARE\Microsoft\SMS`" from the registry"
	Remove-item -Path "HKLM:\SOFTWARE\Microsoft\SMS" -Recurse | Out-Null
	Write-Verbose "Installing $Product $Version"
	$SCCM = Start-Process -FilePath "`"$FullPath`"" -ArgumentList $Arguments -Wait -Passthru -NoNewWindow
	$ExitCode = $SCCM.ExitCode
	Write-Verbose "$Product installer exit code: $ExitCode"
}

if ($SCEP)
{
	$SCEPFile = "Install-SCEP.ps1"
	$SCEPFullPath = Join-Path -Path $scriptDirectory -ChildPath $SCEPFile
	
	Invoke-Expression "& '$SCEPFullPath'"
}

Remove-CimSession -CimSession $Session