Add PowerShell_SME_Command_Guide.md

PowerShell_SME_Command_Guide.md

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+# PowerShell Commands for Support / SME / Helpdesk
+
+Practical commands for **Support Engineers and SMEs** managing user
+issues, workstations, and basic troubleshooting.
+
+------------------------------------------------------------------------
+
+# Table of Contents
+
+1.  Computer Information
+2.  Network Troubleshooting
+3.  Process and Application Issues
+4.  Service Troubleshooting
+5.  File Management
+6.  Event Logs
+7.  Remote Computer Access
+8.  Useful Support Commands
+
+------------------------------------------------------------------------
+
+# 1. Computer Information
+
+``` powershell
+Get-ComputerInfo
+hostname
+whoami
+```
+
+Check uptime:
+
+``` powershell
+(Get-CimInstance Win32_OperatingSystem).LastBootUpTime
+```
+
+------------------------------------------------------------------------
+
+# 2. Network Troubleshooting
+
+Check IP:
+
+``` powershell
+Get-NetIPAddress
+ipconfig
+```
+
+Ping test:
+
+``` powershell
+Test-Connection google.com
+```
+
+Check if port open:
+
+``` powershell
+Test-NetConnection server01 -Port 443
+```
+
+DNS lookup:
+
+``` powershell
+Resolve-DnsName google.com
+```
+
+------------------------------------------------------------------------
+
+# 3. Process and Application Issues
+
+List processes:
+
+``` powershell
+Get-Process
+```
+
+Find application:
+
+``` powershell
+Get-Process chrome
+```
+
+Kill frozen app:
+
+``` powershell
+Stop-Process -Name chrome -Force
+```
+
+Start application:
+
+``` powershell
+Start-Process notepad
+```
+
+------------------------------------------------------------------------
+
+# 4. Service Troubleshooting
+
+Check services:
+
+``` powershell
+Get-Service
+```
+
+Restart a service:
+
+``` powershell
+Restart-Service spooler
+```
+
+Check if running:
+
+``` powershell
+Get-Service spooler
+```
+
+------------------------------------------------------------------------
+
+# 5. File Management
+
+List files:
+
+``` powershell
+Get-ChildItem
+```
+
+Copy files:
+
+``` powershell
+Copy-Item file.txt C:\Temp
+```
+
+Delete file:
+
+``` powershell
+Remove-Item file.txt
+```
+
+Read log file:
+
+``` powershell
+Get-Content log.txt -Tail 50
+```
+
+------------------------------------------------------------------------
+
+# 6. Event Logs
+
+Recent system errors:
+
+``` powershell
+Get-WinEvent -LogName System -MaxEvents 20
+```
+
+Application errors:
+
+``` powershell
+Get-WinEvent -LogName Application -MaxEvents 20
+```
+
+------------------------------------------------------------------------
+
+# 7. Remote Computer Access
+
+Connect remote PowerShell:
+
+``` powershell
+Enter-PSSession PC01
+```
+
+Run command remotely:
+
+``` powershell
+Invoke-Command -ComputerName PC01 -ScriptBlock { Get-Service }
+```
+
+Restart remote computer:
+
+``` powershell
+Restart-Computer PC01
+```
+
+------------------------------------------------------------------------
+
+# 8. Useful Support Commands
+
+Check disk space:
+
+``` powershell
+Get-Volume
+```
+
+List logged in users:
+
+``` powershell
+quser
+```
+
+Find large files:
+
+``` powershell
+Get-ChildItem C:\ -Recurse |
+Sort Length -Descending |
+Select -First 10
+```
+
+Check installed updates:
+
+``` powershell
+Get-HotFix
+```