Automate Dell BIOS Updates | PowerShell

$remove = @('*Dell Command*')
 
function Get-InstalledApps {
param (
[Parameter(ValueFromPipeline=$true)]
[string[]]$ComputerName = $env:COMPUTERNAME,
[string]$NameRegex = ''
)
 
    foreach ($comp in $ComputerName) {
    $keys = '','\Wow6432Node'
        foreach ($key in $keys) {
        try {
            $apps = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine',$comp).OpenSubKey("SOFTWARE$key\Microsoft\Windows\CurrentVersion\Uninstall").GetSubKeyNames()
        } catch {
            continue
        }
 
            foreach ($app in $apps) {
            $program = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine',$comp).OpenSubKey("SOFTWARE$key\Microsoft\Windows\CurrentVersion\Uninstall\$app")
            $name = $program.GetValue('DisplayName')
                if ($name -and $name -match $NameRegex) {
                    [pscustomobject]@{
                    ComputerName = $comp
                    DisplayName = $name
                    DisplayVersion = $program.GetValue('DisplayVersion')
                    Publisher = $program.GetValue('Publisher')
                    InstallDate = $program.GetValue('InstallDate')
                    UninstallString = $program.GetValue('UninstallString')
                    Bits = $(if ($key -eq '\Wow6432Node') {'64'} else {'32'})
                    Path = $program.name
                    }
                }
            }
        }
    }
}
 
$array = Foreach ($r in $remove){
Get-InstalledApps | Where-Object {$_.DisplayName -like $r } | Select-Object -ExpandProperty UninstallString
}
 
ForEach ($a in $array) {
& "$env:ComSpec" /c $a /quiet
}
 
$ExecutingScriptDirectory = Split-Path -Path $MyInvocation.MyCommand.Definition -Parent
 
Start-Process "$ExecutingScriptDirectory\Dell-Command-Update-Application-for-Windows-10_GRVPK_WIN_4.3.0_A00_03.EXE" -ArgumentList '/s' -Verbose -Wait
 
Start-Process -FilePath "C:\Program Files (x86)\Dell\CommandUpdate\DellCommandUpdate.exe" -ArgumentList "/s" -Verbose -Wait
Set-Service -Name 'DellClientManagementService' -StartupType Manual
 
Start-Process -FilePath "C:\Program Files (x86)\Dell\CommandUpdate\dcu-cli.exe" -ArgumentList "/Scan -Report=C:\TEMP" -Wait
$XMLReport = Get-Content "C:\TEMP\DCUApplicableUpdates.xml"
 
#We now remove the item, because we don't need it anymore, and it sometimes fails to overwrite.
Remove-Item "C:\TEMP\DCUApplicableUpdates.xml" -Force
 
$AvailableUpdates = $XMLReport.updates.update
 
$BIOSUpdates = ($XMLReport.updates.update | Where-Object { $_.type -eq "BIOS" }).name.Count
$ApplicationUpdates = ($XMLReport.updates.update | Where-Object { $_.type -eq "Application" }).name.Count
$DriverUpdates = ($XMLReport.updates.update | Where-Object { $_.type -eq "Driver" }).name.Count
$FirmwareUpdates = ($XMLReport.updates.update | Where-Object { $_.type -eq "Firmware" }).name.Count
$OtherUpdates = ($XMLReport.updates.update | Where-Object { $_.type -eq "Other" }).name.Count
$PatchUpdates = ($XMLReport.updates.update | Where-Object { $_.type -eq "Patch" }).name.Count
$UtilityUpdates = ($XMLReport.updates.update | Where-Object { $_.type -eq "Utility" }).name.Count
$UrgentUpdates = ($XMLReport.updates.update | Where-Object { $_.Urgency -eq "Urgent" }).name.Count
 
Start-Process -FilePath "C:\Program Files (x86)\Dell\CommandUpdate\dcu-cli.exe" -ArgumentList "/applyUpdates -autoSuspendBitLocker=enable -reboot=enable -updateType=bios" -Wait