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Note: Must run as administrator. ### Adding a New Local User New-LocalUser -Name "NewUser" -Password (Read-Host -AsSecureString "Enter password") * * * ## IV. System Settings Operations ### Setting System Timezone Set-TimeZone -Id "China Standard Time" View supported timezones: Get-TimeZone -ListAvailable ### Setting System Hostname (Requires Restart to Take Effect) Rename-Computer -NewName "MyNewPC" -Restart ### Setting System Time (Requires Administrator Privileges) Set-Date -Date "2025-07-22 10:30" * * * ## V. Practical Scenario Examples * * * ### Example 1: Testing Connectivity from Local Machine to Multiple Target Hosts "192.168.1.1", "8.8.8.8", "www.baidu.com" | ForEach-Object { Test-Connection -ComputerName $_ -Count 2} ### Example 2: Listing Currently Open TCP Ports (Status: Listening) Get-NetTCPConnection | Where-Object { $_.State -eq "Listen" } ### Example 3: Generating a System Information Report $report = Get-ComputerInfo | Select-Object OSName, OSArchitecture, CsName, CsProcessors, WindowsVersion $report | Out-File -FilePath "C:SystemReport.txt" * * * ## VI. Summary PowerShell offers robust network and system management capabilities that far surpass traditional command-line tools: * Network operations support testing, monitoring, and configuring IPs and ports * System information commands facilitate generating diagnostic reports and automated audits * Local account management is suitable for small systems or workgroups * All commands are object-oriented, highly flexible, and scriptable