PowerShell Script to Generate a Windows System Inventory

Introduction

Windows administrators frequently need a fast and reliable way to collect system information without relying on third-party tools. This Anavem PowerShell script provides a clean, read-only system inventory that can be executed locally, via Intune, or through RMM platforms.

What the Script Collects

Computer name and manufacturer
Hardware model
Windows edition, version, and build
BIOS version and serial number
CPU model
Installed RAM (GB)
System uptime

Output Location

The script automatically creates the following directory if it does not exist:

C:\Scripts

A timestamped TXT file is generated on each execution.

How to Run the Script

Method 1 - Manual execution

powershell -ExecutionPolicy Bypass -File .\Anavem-SystemInventory.ps1

Method 2 - Intune / RMM

Use the script as a detection or reporting task. No admin privileges required.

Script Code

<# 
================================================================================
 Anavem.com - PowerShell Script
================================================================================
 Script Name : Anavem-SystemInventory.ps1
 Description : Collects Windows hardware and OS inventory and writes to TXT file
 Author      : Anavem.com
 Version     : 1.1.1
 Website     : https://www.anavem.com

 Use Case    :
 - System inventory
 - IT support diagnostics
 - Asset documentation
 - Intune / RMM reporting

 Run as Admin: No
================================================================================
#>

# Ensure output directory exists
$OutputDir = "C:\Scripts"
if (-not (Test-Path $OutputDir)) {
    New-Item -Path $OutputDir -ItemType Directory -Force | Out-Null
}

# File name with timestamp
$Timestamp = Get-Date -Format "yyyy-MM-dd_HH-mm-ss"
$OutputFile = "$OutputDir\Anavem-SystemInventory_$Timestamp.txt"

# Collect system information
$cs   = Get-CimInstance Win32_ComputerSystem
$os   = Get-CimInstance Win32_OperatingSystem
$cpu  = Get-CimInstance Win32_Processor | Select-Object -First 1
$bios = Get-CimInstance Win32_BIOS

# Build output
$Inventory = @"
Anavem.com : Windows System Inventory
Script   : Anavem-SystemInventory.ps1
Version  : 1.1.0
Generated: $(Get-Date)
------------------------------------------------------------

Computer Name : $env:COMPUTERNAME
Manufacturer  : $($cs.Manufacturer)
Model         : $($cs.Model)

Operating System : $($os.Caption)
OS Version       : $($os.Version)
OS Build         : $($os.BuildNumber)

BIOS Version : $($bios.SMBIOSBIOSVersion)
Serial No.   : $($bios.SerialNumber)

CPU  : $($cpu.Name)
RAM  : $([math]::Round($cs.TotalPhysicalMemory / 1GB, 2)) GB

Uptime : $((Get-Date) - $os.LastBootUpTime)

------------------------------------------------------------
Generated by Anavem.com
"@

# Write to file
$Inventory | Out-File -FilePath $OutputFile -Encoding UTF8

# Optional console confirmation (safe if run manually)
Write-Host "Inventory saved to $OutputFile"

Security Notes

This script performs read-only CIM queries and does not modify the system, registry, or network configuration. It is safe to run in production environments.

Source Code

View RepositoryGitHub View Raw FileSource Code

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