Get Active Directory failed logins

$Date= Get-date	
 
$DC= "Enter Server Name Here"
 
$Report= "Enter location to store the Report with files name ending .html  ei c:\temp\report.html"
 
$HTML=@"
<title>Event Logs Report</title>
<style>
BODY{background-color :#FFFFF}
TABLE{Border-width:thin;border-style: solid;border-color:Black;border-collapse: collapse;}
TH{border-width: 1px;padding: 1px;border-style: solid;border-color: black;background-color: ThreeDShadow}
TD{border-width: 1px;padding: 0px;border-style: solid;border-color: black;background-color: Transparent}
</style>
"@
 
$eventsDC= Get-Eventlog security -Computer $DC -InstanceId 4625 -After (Get-Date).AddDays(-7) |
   Select TimeGenerated,ReplacementStrings |
   % {
     New-Object PSObject -Property @{
      Source_Computer = $_.ReplacementStrings[13]
      UserName = $_.ReplacementStrings[5]
      IP_Address = $_.ReplacementStrings[19]
      Date = $_.TimeGenerated
    }
   }
 
  $eventsDC | ConvertTo-Html -Property Source_Computer,UserName,IP_Address,Date -head $HTML -body "<H2>Gernerated On $Date</H2>"|
	 Out-File $Report -Append