How to find what is causing high CPU usage on a Windows server using Performance Monitor
The server is slow. Users are complaining. You open Task Manager and see CPU sitting at 90% - but Task Manager only…
Guides and articles
Practical guides for system administrators - Windows, PowerShell, Active Directory, networking, and infrastructure.
How to read CBS.log in Windows: what SFC and DISM actually tell you
Every time you run sfc /scannow or DISM /RestoreHealth, Windows writes a detailed record of what it found and what it did…
DISM in Windows: repair the Windows image when SFC can't
DISM - Deployment Image Servicing and Management - is the tool you reach for when sfc /scannow reports corrupted files it cannot…
sfc /scannow in Windows: what it does, when it works, and when it doesn't
System File Checker - sfc - scans Windows protected system files and replaces damaged or missing ones from a cached copy. It…
How to monitor Windows Server performance from PowerShell using Get-Counter
Performance Monitor gives you graphs. Get-Counter gives you data - in the terminal, in variables, in CSV files, in scripts that run…
How to read and clear Windows Event Logs with PowerShell
Windows Event Logs accumulate fast. On a busy server, the Application and System logs can hold hundreds of thousands of entries within…
RDP security warning after April 2026 Windows update (KB5083769): what it is and how to respond
After installing the April 2026 Windows security update, users started seeing a new dialog every time they open an .rdp file -…
nmap for Windows: network scanning without installing Linux
Network scanning on Windows usually means installing something or switching to Linux. nmap breaks that assumption - it runs natively on Windows,…
ipconfig command in Windows: beyond /all
Every Windows administrator knows ipconfig It is usually the first command run when something on the network stops working. But ipconfig…
How to check open ports on Windows: built-in tools vs Port Checker
Checking whether a port is open - on the local machine or on a remote server - comes up in almost every…