Get Who Shutdown A Windows Server or PC

Get-ShutdownUser.ps1

function Get-ShutdownUser
{
    
    [CmdletBinding()]
    Param
    (
        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true)]
        [bool]$ShowInfo = $false,
        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true)]
        [string]$Computer
    )
    
    if($Computer -eq $null -or $COmputer -eq ""){
        $Computer = ($env:COMPUTERNAME)
    }

    # Gets the User, reason, reason code and shutdown type e.g. 'power off'
    Get-WinEvent -ComputerName $Computer -FilterHashtable @{logname = 'System'; id = 1074} | Format-Table -Wrap
    
    if($ShowInfo){
        # Gets shutdown and restart related events
        Get-EventLog System -Newest 10000 | Where EventId -in 41,1074,1076,6005,6006,6008 | Format-Table TimeGenerated,EventId,UserName,Message -AutoSize -wrap #,6013,6009
    }

}