If you come from Linux, you expect aliases to just work — type alias ll=’ls -la’, press Enter, done. Windows has the same concept, but it lives in two separate places depending on which shell you are in: CMD has…
netsh (Network Shell) is a command-line scripting utility built into Windows that lets you configure and inspect virtually every aspect of networking from a terminal — no GUI required. It operates through a context hierarchy: you enter a context like…
DISM — Deployment Image Servicing and Management — is the tool you reach for when sfc /scannow reports corrupted files it cannot fix. Where SFC checks and repairs individual system files, DISM works at a lower level: it validates and…
System File Checker — sfc — scans Windows protected system files and replaces damaged or missing ones from a cached copy. It is usually the first repair tool you reach for when Windows starts behaving unexpectedly: random crashes, applications that…
Every Windows administrator knows ipconfig It is usually the first command run when something on the network stops working. But ipconfig does more than display adapter information — it can flush the DNS cache, force a DHCP lease renewal,…
When something goes wrong on a Windows machine — a service crash, a failed login, an unexpected reboot — the answer is usually in the Event Log. wevtutil lets you query, filter, export, and clear Event Logs entirely from the…
When a Group Policy setting is not applying as expected — a drive mapping is missing, a software restriction is not enforced, a desktop lockdown is not working — the question is always the same: which GPOs actually applied to…
XCOPY has been part of Windows since DOS. Robocopy shipped with Windows Server 2003 Resource Kit and became a standard OS component in Vista. For most file copy tasks today, Robocopy is the right choice — but XCOPY is still…
Robocopy does not use a standard pass/fail exit code. It uses a bitmask — a number where each bit represents a different outcome, and multiple bits can be set at the same time. This means a non-zero exit code does…
When a port is unreachable, a service is not responding, or something is holding a connection open, netstat is the first command to run. It shows exactly what is listening on which port, which connections are established, which processes own…
