Guide

Step-by-step guides: how a command or feature works and how to use it on real Windows, Active Directory, VMware and Linux systems.

PowerShell

How to upgrade PowerShell 7 on Windows 10 and 11

PowerShell 7 installs beside Windows PowerShell 5.1, it does not replace it. How to upgrade with winget, the MSI, the ZIP or the MSIX package, and what changes after 7.6.

September 23, 2026

Active Directory

dfsutil and dfsdiag: managing and diagnosing DFS Namespaces

dfsutil and dfsdiag are the two command-line tools that come with the DFS Namespaces management feature. dfsutil reads and edits namespace configuration…

September 20, 2026

VMware

Invoke-VMScript: run a script inside a VM without guest networking

Invoke-VMScript is the PowerCLI cmdlet that runs a script inside the guest operating system of a virtual machine. It does not use…

September 19, 2026

Windows command line

where and Get-Command in Windows: find which binary actually runs

where answers one question: when I type this command, which file on disk actually runs? On a machine that has been in…

September 18, 2026

Active Directory

dfsrmig: check SYSVOL replication and migrate FRS to DFSR

dfsrmig is the SYSVOL migration tool. It ships with the DFS Replication service and it does exactly one job: it moves replication…

September 17, 2026

Linux

Grow a Linux disk after extending a VMDK

A hands-on Ubuntu Server lab: extend the VMDK from 60 to 80 GB in vSphere, then grow the partition, the LVM physical volume, the logical volume and the ext4 filesystem, checking every layer as you go.

September 16, 2026

Linux

Connect to a Linux server from Windows

The full path from a Windows workstation to a working Linux session: checking the OpenSSH client, the first connection and the fingerprint prompt, moving to keys, the config file, copying files, and reading the error when it refuses you.