# Essential Windows 11 PowerShell Commands Reference
# Educational PowerShell Scripts
# Date: May 21, 2025

# SYSTEM INFORMATION COMMANDS
# --------------------------

# Get Windows version information
Get-ComputerInfo | Select-Object WindowsProductName, WindowsVersion, OsHardwareAbstractionLayer

# Get hardware information
Get-CimInstance -ClassName Win32_ComputerSystem
Get-CimInstance -ClassName Win32_Processor
Get-CimInstance -ClassName Win32_PhysicalMemory | Measure-Object -Property Capacity -Sum

# Get disk information
Get-CimInstance -ClassName Win32_LogicalDisk -Filter "DriveType=3"

# Get network adapter information
Get-NetAdapter
Get-NetIPAddress

# Get installed software
Get-CimInstance -ClassName Win32_Product | Select-Object Name, Version

# See all environment variables
Get-ChildItem Env:

# FILE SYSTEM COMMANDS
# -------------------

# Navigate directories
Set-Location -Path C:\Path\To\Directory  # cd equivalent
Get-Location  # pwd equivalent

# List files and folders
Get-ChildItem  # ls/dir equivalent
Get-ChildItem -Path C:\Windows -Filter *.exe -Recurse -File

# File operations
New-Item -Path "C:\path\newfile.txt" -ItemType File
New-Item -Path "C:\path\newfolder" -ItemType Directory
Copy-Item -Path "C:\source\file.txt" -Destination "C:\dest\file.txt"
Move-Item -Path "C:\source\file.txt" -Destination "C:\dest\file.txt"
Remove-Item -Path "C:\path\file.txt"
Remove-Item -Path "C:\path\folder" -Recurse

# Get file content
Get-Content -Path "C:\path\file.txt"
Select-String -Path "C:\path\file.txt" -Pattern "search term"

# PROCESS MANAGEMENT
# -----------------

# View all running processes
Get-Process

# Get specific process
Get-Process -Name "chrome"

# Start a process
Start-Process -FilePath "notepad.exe"
Start-Process -FilePath "notepad.exe" -ArgumentList "C:\path\file.txt"

# Stop a process
Stop-Process -Name "notepad"
Stop-Process -Id 1234
Stop-Process -Name "notepad" -Force

# SERVICE MANAGEMENT
# -----------------

# List all services
Get-Service

# Get specific service status
Get-Service -Name "wuauserv"  # Windows Update service

# Start, stop, restart services
Start-Service -Name "wuauserv"
Stop-Service -Name "wuauserv"
Restart-Service -Name "wuauserv"

# USER MANAGEMENT
# --------------

# Get local users
Get-LocalUser

# Create new local user
New-LocalUser -Name "username" -Description "Description" -NoPassword

# Set user password
$Password = Read-Host -AsSecureString
Set-LocalUser -Name "username" -Password $Password

# Add user to group
Add-LocalGroupMember -Group "Administrators" -Member "username"

# REGISTRY MANAGEMENT
# ------------------

# Navigate registry
Set-Location -Path "HKLM:\SOFTWARE\Microsoft\Windows"

# Get registry values
Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion"

# Set registry value
Set-ItemProperty -Path "HKCU:\Software\MyApp" -Name "Setting" -Value "Value"

# Create registry key
New-Item -Path "HKCU:\Software\MyApp"

# NETWORKING COMMANDS
# -----------------

# Test network connection
Test-NetConnection -ComputerName "www.google.com"
Test-NetConnection -ComputerName "www.google.com" -Port 443

# Get IP configuration
Get-NetIPConfiguration

# Release/Renew DHCP
Invoke-Command {ipconfig /release}
Invoke-Command {ipconfig /renew}

# Flush DNS
Invoke-Command {ipconfig /flushdns}

# WINDOWS FEATURES
# --------------

# View all Windows features
Get-WindowsOptionalFeature -Online

# Enable/Disable Windows features
Enable-WindowsOptionalFeature -Online -FeatureName "Microsoft-Hyper-V"
Disable-WindowsOptionalFeature -Online -FeatureName "SMB1Protocol"

# WINDOWS UPDATES
# -------------

# Check for Windows updates
Install-Module PSWindowsUpdate
Get-WindowsUpdate

# Install Windows updates
Install-WindowsUpdate

# TASK SCHEDULING
# -------------

# View scheduled tasks
Get-ScheduledTask

# Create a scheduled task
$Action = New-ScheduledTaskAction -Execute "PowerShell.exe" -Argument "-File C:\path\script.ps1"
$Trigger = New-ScheduledTaskTrigger -Daily -At 9am
Register-ScheduledTask -Action $Action -Trigger $Trigger -TaskName "MyTask" -Description "Task description"