Learn PowerShell commands for Windows administration, troubleshooting, networking, DNS, storage, processes, services, Microsoft Defender, security and system information.
Use the UniTech LK PowerShell command library when you need to quickly find a command and understand what it is used for.
The library covers Windows administration, files, folders, processes, services, networking, DNS, storage, event logs, users, scheduled tasks, registry, security and Microsoft Defender.
WMIC is deprecated and may be missing on newer Windows 11 systems. Learn the PowerShell Get-CimInstance commands that replace common WMIC queries for serial number, computer model, CPU, RAM and disks.
Read the Guide Watch on YouTubeBrowse categorized PowerShell commands with examples and explanations for Windows administration and troubleshooting.
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Find large files and folders, investigate C drive usage, analyze Windows storage and check WinSxS with PowerShell and Windows servicing tools.
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Update security intelligence, run Quick Scan, Full Scan and Offline Scan, review threat information and check Defender protection status.
Read the Guide Watch on YouTubeThese are examples of PowerShell commands commonly used when troubleshooting Windows.
Learn what a PowerShell command does and review its parameters.
Search the commands available in your current PowerShell environment.
Display running processes.
Display Windows services and their current status.
Display detailed Windows and computer information.
PowerShell includes Windows networking commands for checking adapters, IP configuration, DNS, connectivity and TCP sessions.
Test basic network connectivity.
Test network connectivity or a remote TCP port.
Show Windows network adapters.
Show IP addresses, default gateway and DNS information.
Show current TCP connections.
Perform a DNS lookup using PowerShell.
PowerShell can inspect disks, partitions, volumes and file-system storage.
For more detailed disk-space investigation, use the complete storage guide:
PowerShell Storage AnalysisPowerShell can assist with file integrity, permissions, signatures and Microsoft Defender troubleshooting.
Generate a SHA256 hash for a file.
Check the digital signature information for a supported file.
Read access-control information.
List files and folders.
Copy a file or folder.
Move a file or folder.
Read the contents of a text file.
PowerShell can help administrators inspect and manage Windows services, processes, scheduled tasks, local accounts, system information and remote computers.
UniTech LK PowerShell guides cover topics including:
Not every PowerShell command requires Administrator privileges. Use elevation only when the task requires it.
Be especially careful with commands that remove files, stop services, change permissions, modify registry values, alter networking or change Windows security settings.
Always understand a command before running it on an important Windows computer or production server.
Use Get-Command inside PowerShell or browse the UniTech LK PowerShell Commands A-Z reference.
Open PowerShell Commands A-ZUse Get-Help followed by the command and the -Examples parameter.
Yes. PowerShell provides commands for connectivity tests, TCP ports, IP configuration, adapters, routes, DNS and active TCP connections.
Yes. PowerShell can recursively enumerate files, measure file sizes and sort them to identify large storage usage.
Supported Microsoft Defender PowerShell commands can display protection status, update security intelligence, start scans and review threat information.