Windows 11 Installer

Summary

Install Windows 11 on a compatible Windows 10 computer. The default behavior of the script is to restart the computer to complete the upgrade. However, the NoReboot parameter provides an option to suppress the reboot. It is recommended that the computer be rebooted at the earliest convenience to complete the upgrade.

The OS drive should have 20 GB of free space to install the upgrade.

This task can be executed manually against the computers present in the Windows 11 Compatible Machines group.

Sample Run

Dependencies

• CW RMM - Custom Field - Windows 11 Upgrade RunTime
• CW RMM - Device Group - Windows 11 Compatible Machines

Variables

Name	Description
Output	Output of the previously executed PowerShell script.

User Parameters

Name	Type	Required	Description	Default Value
NoReboot	Flag	No	Provides an option to suppress the reboot while running the script.	False

Task Creation

Create a new Script Editor style script in the system to implement this task.

Name: Windows 11 Installer
Description: Install Windows 11 on a compatible Windows 10 computer.
Category: Patching

Parameters

Add a new parameter by clicking the Add Parameter button present at the top-right corner of the screen.

This screen will appear.

• Set NoReboot in the Parameter Name field.
• Select Flag from the Parameter Type dropdown menu.
• Enable the Default Value option.
• Select False from the Value dropdown menu.
• Click the Save button.
  
• It will ask for confirmation to proceed. Click the Confirm button to create the parameter.
  

Task

Navigate to the Script Editor Section and start by adding a row. You can do this by clicking the Add Row button at the bottom of the script page.

A blank function will appear.

Row 1 Function: PowerShell Script

Search and select the PowerShell Script function.

The following function will pop up on the screen:

Paste in the following PowerShell script and leave the expected time of script execution set to 7200 seconds. Click the Save button.

[Net.ServicePointManager]::SecurityProtocol = [Enum]::ToObject([Net.SecurityProtocolType], 3072)

if ( ( Get-Volume -DriveLetter $env:SystemDrive[0] ).SizeRemaining -le 20GB ) {
    throw @"
The Drive Space health check failed. The drive must have 20GB of free space to perform a Feature Update.
        Current available space on $($env:SystemDrive[0]): $([math]::round($systemVolume.SizeRemaining / 1GB, 2))
        For more information: https://learn.microsoft.com/en-us/troubleshoot/windows-client/deployment/windows-10-upgrade-quick-fixes?toc=%2Fwindows%2Fdeployment%2Ftoc.json&bc=%2Fwindows%2Fdeployment%2Fbreadcrumb%2Ftoc.json#verify-disk-space
"@
}

$free = (Get-Partition | Where-Object { $_.IsSystem } | Get-Volume).SizeRemaining / 1MB
if ($free -gt 15) {
    Write-Information 'Sufficient Space Available' -InformationAction Continue
}
$diskNumber = (Get-Partition | Where-Object { $_.IsSystem }).DiskNumber
$style = (Get-Disk | Where-Object { $_.Number -eq $diskNumber }).PartitionStyle
if ($style -eq 'MBR') {
    throw @'
15MB of free space on the System Reserved Partition (SRP) is needed for upgrading a Windows 10 to 11.
Autofix is not recommended for MBR disks.
Please follow the instructions provided for 'Windows 10 with GPT partition' in the this article:
https://support.microsoft.com/en-us/topic/-we-couldn-t-update-system-reserved-partition-error-installing-windows-10-46865f3f-37bb-4c51-c69f-07271b6672ac
'@
}
Write-Information 'Clearing unneeded space on the System Reserved Partition' -InformationAction Continue
cmd.exe /c mountvol y: /s
Get-ChildItem -Path 'Y:\EFI\Microsoft\Boot\Fonts' -Force -Recurse | Remove-Item -Force -Recurse
cmd.exe /c mountvol y: /D

$free = (Get-Partition | Where-Object { $_.IsSystem } | Get-Volume).SizeRemaining / 1MB
if ($free -gt 15) {
    Write-Information 'Freed Sufficient Space' -InformationAction Continue
} else {
    throw @'
Failed to free up enough space on the System Reserved Partition (SRP).
15MB of free space on the System Reserved Partition (SRP) is needed for upgrading a Windows 10 to 11.
Please follow the instructions provided in the this article:
https://support.microsoft.com/en-us/topic/-we-couldn-t-update-system-reserved-partition-error-installing-windows-10-46865f3f-37bb-4c51-c69f-07271b6672ac
'@
}

$appName = 'windows-upgrader'
$workingDirectory = "C:\ProgramData\_Automation\App\$appName"
$filePath = "$workingDirectory\$appName.exe"
$url = 'https://file.provaltech.com/repo/app/windows-upgrader.exe'

Remove-Item -Path $workingDirectory -Force -ErrorAction SilentlyContinue
New-Item -Path $workingDirectory -ItemType Directory -Force -ErrorAction SilentlyContinue | Out-Null

try {
    Invoke-WebRequest -Uri $url -OutFile $filePath -UseBasicParsing -ErrorAction Stop
    Unblock-File -Path $filePath -ErrorAction SilentlyContinue
} catch {
    throw "Failed to download the installer. Reason: $($Error[0].exception.Message)"
}

if ( '@NoReboot@' -match '1|Yes|True' ) {
    & $filepath --noreboot
} else {
    & $filepath
}

Row 2 Function: Script Log

Add a new row by clicking the Add Row button.

A blank function will appear.

Search and select the Script Log function.

The following function will pop up on the screen: 

In the script log message, simply type %output% and click the Save button

Click the Save button at the top right corner of the screen to save the task.

Click the Save button at the top right corner of the screen to save the task.

Completed Task

Deployment

It is suggested to run this task manually for the time being.

Output

• Script Log
• Custom Field