Powershell: XML Parsing and writing to the event viewer

I am trying to parse an XML files from a directory where a keyword is defined, if the keyword is found true, take the contents of the xml and post it as the -Message portion of a Write Event and change that keyword so it isn't found the second time the script is run.

#### THIS CODE GETS ALL THE FILES THAT CONTAINS THE "Major" Pattern
 $Path = "C:\test\"
 $SearchFor = "Major"
 $TestFor = "parsedxml"
 $Parse = "ParsedXML"
 $PathArray = @()
 $FolderFile = "C:\test\*.xml"
 $found = @()

 # This code snippet gets all the files in $Path that end in ".xml".
 Get-ChildItem $Path -Filter "*.xml" | Select-String -Pattern "Major" 
 ForEach-Object { 
     If (Get-Content $FolderFile | Select-String -Pattern
 "Major","Parsedxml") 
     {
      
                   
     }
  }

#### THIS WORKS TO CHANGE THE KEYWORD IN THE FILE ###
Get-ChildItem C:\test\*.xml -recurse | ForEach {
  (Get-Content $_ | ForEach {$_ -replace "Major", "Parsed"}) | Set-Content $_ 
}


### THIS WORKS (KINDA) TO PARSE THE FILE INTO AN EVENTLOG ###
### BUT IT PARSES THE .XML LINE BY LINE FOR SOME REASON ####
Get-ChildItem C:\test\*.xml | ForEach {
(Get-Content $_)| ForEach { Write-EventLog –LogName Application –Source “Verint Alert” –EntryType Information –EventID 1 -Message ("Triggered Alarm" + ($_))
  }
  }

But I cannot seem to make the code do the following: Read the file, if it contains "Major" Parse the whole .xml as a "Write EventLog -Message" and once it is parsed, change the keyword Major to the word Parsed.