Powershell utility to check for IRQ sharing on Windows systems

irq-sharing-check.ps1

try {
    $irqs = Get-WmiObject -Class Win32_IRQResource
    $sharedIRQs = $irqs | Group-Object -Property IRQNumber | Where-Object { $_.Count -gt 1 }

    if (-not $sharedIRQs -or $sharedIRQs.Count -eq 0) {
        Write-Output "No IRQs are shared."
    } else {
        foreach ($irq in $sharedIRQs) {
            Write-Output "IRQ $($irq.Name) is shared by the following devices:"
            $irq.Group | ForEach-Object { Write-Output "    $($_.Name)" }
            Write-Output ""
        }
    }
} catch {
    Write-Output "An error occurred: $_"
}

Write-Host "`r`nPress Enter to exit."
do {
    $key = [Console]::ReadKey($true).Key
} while ($key -ne 'Enter')