🚀Troubleshoot with CMD & Powershell

Sure! Below is a comprehensive list of troubleshooting tools for both Command Prompt (CMD) and PowerShell, categorized by system diagnostics, network troubleshooting, performance monitoring, security, and repair tasks. Each tool includes example commands and explanations of when to use them.

🚀 Windows Troubleshooting Toolkit (CMD + PowerShell)

🔹 System Information & Diagnostics

Task	CMD Command	PowerShell Command	Purpose
Get System Information	systeminfo	Get-ComputerInfo	Retrieves details like OS version, RAM, uptime, and more.
Check System Uptime	wmic os get LastBootUpTime	(Get-CimInstance Win32_OperatingSystem).LastBootUpTime	Shows the last time the PC was restarted.
View Recent System Errors	wevtutil qe System /c:10 /rd:true /f:text	Get-EventLog -LogName System -Newest 10 -EntryType Error	Retrieves the latest system errors from the Event Viewer.
Generate a Performance Report	perfmon /report	perfmon /report	Runs a 60-second diagnostic test on system performance.

📡 Network Troubleshooting

Task	CMD Command	PowerShell Command	Purpose
Check IP Configuration	ipconfig /all	Get-NetIPConfiguration	Displays network adapter settings, IP, DNS, and MAC addresses.
Flush DNS Cache	ipconfig /flushdns	Clear-DnsClientCache	Fixes DNS issues, such as slow or failed webpage loading.
Test Internet Connection	ping google.com	Test-NetConnection -ComputerName google.com -InformationLevel Detailed	Tests if the PC can reach the internet.
List Active Network Connections	netstat -ano	Get-NetTCPConnection	Identifies open ports, remote connections, and potential malware activity.
Reset Network Settings	netsh winsock reset	netsh winsock reset	Fixes network issues by resetting Winsock.

🖥 Performance & Process Monitoring

Task	CMD Command	PowerShell Command	Purpose
View Running Processes	tasklist	Get-Process	Lists all active processes.
Kill a Process	taskkill /IM notepad.exe /F	Stop-Process -Name notepad -Force	Forcefully stops an unresponsive program.
Check CPU Usage	wmic cpu get loadpercentage	`Get-WmiObject win32_processor	Select-Object -ExpandProperty LoadPercentage`
Check Memory Usage	wmic OS get FreePhysicalMemory	Get-Counter "\Memory\Available MBytes"	Shows available RAM on the system.
Monitor Real-Time CPU Usage	wmic path Win32_PerfFormattedData_PerfOS_Processor get PercentProcessorTime	`Get-Process	Sort-Object CPU -Descending

💾 Disk & Storage Analysis

Task	CMD Command	PowerShell Command	Purpose
Check Disk Usage	wmic logicaldisk get caption,freespace,size	`Get-Volume	Select-Object DriveLetter, FileSystem, SizeRemaining`
List & Check Drive Health	wmic diskdrive get model,status	`Get-PhysicalDisk	Select-Object FriendlyName, HealthStatus`
Run CHKDSK (Check Disk for Errors)	chkdsk /f	Repair-Volume -DriveLetter C	Scans and fixes drive errors.
Defragment a Drive	defrag C:	Optimize-Volume -DriveLetter C -Defrag	Optimizes file storage for better performance.

🔧 System Repair & Maintenance

Task	CMD Command	PowerShell Command	Purpose
Check & Repair Corrupt System Files	sfc /scannow	sfc /scannow	Scans and repairs corrupt Windows system files.
Fix Advanced System Corruption	DISM /Online /Cleanup-Image /RestoreHealth	DISM /Online /Cleanup-Image /RestoreHealth	Fixes deeper Windows image issues.
Restart Windows Explorer (Fix UI Freezes)	taskkill /IM explorer.exe /F && start explorer.exe	Stop-Process -Name explorer -Force; Start-Process explorer	Fixes an unresponsive taskbar or Start menu.
Restart Windows Update Service	net stop wuauserv && net start wuauserv	Restart-Service wuauserv	Fixes Windows Update errors.

🔒 Security & User Management

Task	CMD Command	PowerShell Command	Purpose
List All User Accounts	net user	Get-LocalUser	Displays all local user accounts.
Check if a User is an Administrator	net localgroup Administrators	Get-LocalGroupMember Administrators	Lists admin users on the system.
Enable a Disabled Account	net user username /active:yes	Enable-LocalUser -Name "username"	Re-enables a disabled user account.
Check for Failed Login Attempts	wevtutil qe Security /c:10 /rd:true /f:text	Get-EventLog -LogName Security -InstanceId 4625 -Newest 10	Detects unauthorized login attempts.

🛠 Automation & Scheduled Tasks

Task	CMD Command	PowerShell Command	Purpose
Schedule a Task to Run Every Night	schtasks /create /tn "NightlyTask" /tr "C:\Scripts\cleanup.bat" /sc daily /st 23:00	`New-ScheduledTaskTrigger -Daily -At 11PM	Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute ‘C:\Scripts\cleanup.bat’) -TaskName “NightlyCleanup”`
Shutdown PC at a Specific Time	shutdown /s /t 3600	Start-Sleep -Seconds 3600; Stop-Computer -Force	Automatically shuts down the PC.
Uninstall a Program Silently	wmic product where "name='Program Name'" call uninstall /nointeractive	`(Get-WmiObject -Class Win32_Product	Where-Object { $_.Name -eq “Program Name” }).Uninstall()`

🔥 BONUS: One-Click Full System Health Check (PowerShell)

This script collects key diagnostic data into a single log file:

$ReportPath = "C:\PC_Health_Report.txt"
Get-ComputerInfo | Out-File $ReportPath
Get-NetIPConfiguration | Out-File -Append $ReportPath
Get-PhysicalDisk | Out-File -Append $ReportPath
Get-Process | Sort-Object CPU -Descending | Select-Object -First 10 | Out-File -Append $ReportPath
Get-EventLog -LogName System -Newest 10 | Out-File -Append $ReportPath
Write-Host "System Health Report saved to $ReportPath"

✅ How to Use: Run this before troubleshooting to gather system info in one place.

💡 These CMD & PowerShell tools help IT professionals diagnose and resolve Windows issues efficiently! Let me know if you need automation scripts! 🚀