Windows Server, Active Directory, and PowerShell guides
A Windows server feels slow. Task Manager is misleading. Resource Monitor is incomplete. The right tools are Get-Counter, PerfMon Data Collector Sets, and a small list of counters that actually matter. Here is the practical guide....
Ping is barely useful in 2026 — most enterprise firewalls drop ICMP. Test-NetConnection, Resolve-DnsName, Get-NetTCPConnection, and pathping are the modern Windows network troubleshooting toolkit. Here is the practical reference....
Get-EventLog is deprecated. Get-WinEvent is what you should use — and it is dramatically faster, supports every modern log channel, and lets you write XPath filters that the kernel resolves before the data hits PowerShell. Here is the complete reference....
The Intune admin center is fine for one-off changes. For inventory, bulk compliance reports, and remote actions across thousands of devices, Microsoft Graph + PowerShell is dramatically faster. Here is the practical reference....
PowerShell + Microsoft Graph can create teams, add channels, manage owners and members, and post messages — without ever opening the Teams admin center. Here is the complete reference with the scopes, cmdlets, and patterns you need....
Six different ways to authenticate to Microsoft Graph, ranked by security. App registration setup step by step, when to use a client secret vs a certificate vs a managed identity, and how to grant the right scopes....
A new wave of hires hits HR. You get a CSV with 200 names, departments, and managers. Here is the production-ready PowerShell + Graph SDK script that turns that CSV into 200 fully provisioned, licensed, group-attached Microsoft 365 users in one run....
The Microsoft Graph PowerShell SDK has replaced the old AzureAD and MSOnline modules. Here is the practical, end-to-end setup — install, scopes, your first user/group queries, paging, batching, and the gotchas you will hit on day one....
PowerShell's default error model surprises people coming from C#, Python, or Bash — most cmdlets do not throw on failure, they just write to a stream. Here is how to actually catch errors, distinguish terminating from non-terminating, and write scripts that fail loudly when they should....