I Built a Free IT Learning Platform for Sysadmins
Introducing Mylemans Labs: free, structured IT learning paths for networking, PowerShell, Proxmox, Active Directory, Microsoft 365 and Docker.
DHCP Congestion on a /24: Superscopes Now, VLANs Later
DHCP congestion on a flat /24: how we bought time with temporary superscopes and a cleanup script, then fixed it properly with VLANs.
Finding Hidden Mailbox Archive Growth in Microsoft 365
Microsoft 365 mailboxes hit the 50 GB limit without warning. How I found hidden archive growth and built a PowerShell report to catch it early.
Switch AD User Language Dynamically with PowerShell
Set each AD user's preferredLanguage attribute, build EN, NL and FR language GPOs with security filtering, then a scheduled PowerShell script sorts users.
How to Export and Import Conditional Access Policy's
Back up and restore Entra Conditional Access policies with PowerShell: export to JSON and import again through the Microsoft.Graph and Graph.Beta modules.
How to Install WSL 2 and Docker on Windows
Install WSL 2 and Docker Desktop on Windows, set up Dockge to manage containers and deploy a hello-world webserver by converting docker run to Compose.
Convert a Windows ISO to VHDX for Hyper-V (Automated)
Turn a Windows Server ISO into a ready VHDX template with Convert-WindowsImage, inject unattend.xml and enable NetFx3, all from one PowerShell script.
Automate an RDS Lab from ISO to Deployment with PowerShell
Build a full RDS lab on Hyper-V from a Windows Server ISO with my HomeLab PowerShell project: VHDX template, then DC, domain join and RDS from JSON.
Intune Autopilot Hardware Hashes with PowerShell
PowerShell scripts that unzip MDMDiagReport.zip exports from Windows 11 devices, merge the Autopilot hardware hashes into one CSV and log serial numbers.
AAD Connect / Cloud Sync with Existing Cloud Users
Avoid duplicate users when linking an existing Office 365 tenant to AD Connect: scripts to match users, sync proxyAddresses and set ImmutableIDs.
Windows hello - Disable PIN
Disable the Windows Hello PIN requirement on Windows 10 and 11 with a PowerShell script that sets the PassportForWork key and deletes existing PIN data.
Find Your Hyper-V VM’s Host Name with PowerShell
One PowerShell command that reads the Hyper-V guest registry key to tell you which Hyper-V host a VM is running on, handy when you manage several hosts.
Fix Error 8018000a: This Device Is Already Enrolled
Entra (Azure AD) join fails with 8018000a, device already enrolled: a PowerShell script removes the stale enrollment, then you delete the old device.