GPO Migrations: A Love Story (Kind of)

Group Policy Object (GPO) migrations are often seen as a tedious task, but they offer a great opportunity to clean up outdated policies and streamline your environment. Dustin Gullett, a Senior Solutions Architect, shares his approach to making GPO migrations smoother and more efficient.

You Should Know:

1. Group Policy Analytics Tool in Intune:

• Use this tool to assess GPO compatibility with Intune. It helps identify which policies can be migrated and which need adjustments.
• Command to access Intune:

  Connect-MSGraph -Scope "GroupPolicy.ReadWrite.All" 
  

2. Export and Organize Policies:

• Export existing GPOs using the Group Policy Management Console (GPMC).
• Organize them in a color-coded spreadsheet to track compatibility, importance, and migration status.
• Command to export GPOs:

  Backup-GPO -All -Path "C:\GPOBackup" 
  

3. Convert .reg Files to PowerShell Scripts:

• For registry-based policies, convert `.reg` files to PowerShell scripts for Intune remediation.
• Example command to import a .reg file and convert it:

  regedit /s "C:\Path\To\Policy.reg" 
  

• Converted PowerShell script for Intune:

  $regPath = "HKLM:\Software\Policies\YourPolicy" 
  if (-not (Test-Path $regPath)) { 
  New-Item -Path $regPath -Force 
  } 
  Set-ItemProperty -Path $regPath -Name "SettingName" -Value "SettingValue" 
  

4. Intune Baselines in JSON Format:

• Use JSON-based Intune baselines to standardize policy deployments.
• Example JSON snippet for a baseline:

  { 
  "policySetting": { 
  "name": "BlockUntrustedFonts", 
  "value": true 
  } 
  } 
  

What Undercode Say:

GPO migrations are more than just moving policies—they’re about optimizing and modernizing your environment. By leveraging tools like Intune’s Group Policy Analytics, organizing policies effectively, and converting legacy settings into modern scripts, you can ensure a seamless transition. Always remember to test your configurations in a non-production environment before deploying them widely.

For more detailed guidance, check out Dustin Gullett’s blog post on GPO migrations: GPO Migrations: A Love Story (Kind of).

Additional Linux/Windows Commands for GPO and Intune:

• Linux Command to Check Group Policies:

  samba-tool gpo listall 
  

• Windows Command to Apply GPOs:
  [cmd]
  gpupdate /force
  [/cmd]
• Intune Command to Sync Devices:

  Invoke-IntuneSync -DeviceName "Device01" 
  

By following these steps and commands, you can turn a daunting GPO migration into a rewarding process.

References:

Reported By: Dustin Gullett – Hackers Feeds
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