Example PowerShell Scripts for Common Administrative Tasks

Get System Information

This script helps you retrieve basic system information.

# GetSystemInfo.ps1
Get-ComputerInfo | Select-Object CsName, OsArchitecture, WindowsVersion, WindowsBuildLabEx

Check Disk Space

This script helps you check disk space on all drives.

# CheckDiskSpace.ps1
Get-PSDrive -PSProvider FileSystem | Select-Object Name, @{Name="Used(GB)";Expression={[math]::round($_.Used/1GB,2)}}, @{Name="Free(GB)";Expression={[math]::round($_.Free/1GB,2)}}, @{Name="Total(GB)";Expression={[math]::round($_.Used/1GB,2) + [math]::round($_.Free/1GB,2)}}

List Installed Software

This script helps you list all installed software on the system.

# ListInstalledSoftware.ps1
Get-WmiObject -Class Win32_Product | Select-Object Name, Version

Create a New User

This script helps you create a new local user account.

# CreateUser.ps1
$Username = "NewUser"
$Password = ConvertTo-SecureString "P@ssword123" -AsPlainText -Force
New-LocalUser -Name $Username -Password $Password -FullName "New User" -Description "Created by script"

Backup a Folder

This script helps you copy a directory to a backup location.

# BackupDirectory.ps1
$source = "C:\Source"
$destination = "D:\Backup\"
Copy-Item -Path $source -Destination $destination -Recurse -Force

Check Network Connectivity

This script helps you ping a list of websites to check connectivity.

# CheckNetworkConnectivity.ps1
$sites = @("google.com", "microsoft.com", "stackoverflow.com")
foreach ($site in $sites) {
    Test-Connection -ComputerName $site -Count 2 | Select-Object Address, ResponseTime
}

Export Event Logs

This script helps you export the application event log to a CSV file.

# ExportEventLogs.ps1
Get-WinEvent -LogName Application | Export-Csv -Path "C:\Logs\ApplicationLogs.csv" -NoTypeInformation

Disable a User Account

This script helps you disable a specified local user account.

# DisableUser.ps1
$Username = "UserToDisable"
Disable-LocalUser -Name $Username

Monitor CPU Usage

This script help you check CPU usage and sends an alert if it exceeds a threshold.

# MonitorCPUUsage.ps1
$threshold = 80
$cpuUsage = Get-Counter '\Processor(_Total)\% Processor Time'
if ($cpuUsage.CounterSamples.CookedValue -gt $threshold) {
    Write-Host "Alert: CPU usage is above $threshold%!"
}

Update Windows

This script helps you trigger a Windows Update.

# UpdateWindows.ps1
Install-Module PSWindowsUpdate -Force -SkipPublisherCheck
Import-Module PSWindowsUpdate
Get-WindowsUpdate -AcceptAll -Install

Install Software Updates

To update software or system components automatically, you can use this script.

Install-WindowsUpdate -AcceptAll -AutoReboot

Send User Notifications

To send reminders about upcoming events to an email distribution list, you can use this script.

Send-MailMessage -To "[email protected]" -From "[email protected]" -Subject "Test" -Body "This is a test message !" -SmtpServer "smtp.gmail.com"

Perform Security Scans

To automatically run security scans to detect malware or vulnerabilities, you can use this script.

Start-MpScan -ScanType QuickScan

Clean Up Temporary Files

This script helps you remove temporary files from the specified directories

Get-ChildItem -Path C:\Windows\Temp\*, $env:TEMP\* -Recurse | Remove-Item -Force -Recurse -ErrorAction SilentlyContinue

Restart a Service

To restart a service, such as Microsoft SQL Server service, you can use commands like the following.

Restart-Service -Name MSSQLSERVER