I'm having issues with removing profiles in PowerShell - powershell

Question

I have developed several scripts to remove unused profiles from machines with the exception of a few important accounts. Every script that I use always give me the same error when using the Remove-WmiObject, Remove-CimInstance, and .Delete(). I am certain that all of these scripts should work, but I receive the same error. Please see the below script and attached error. There is something wrong with my machine that is blocking me from using any of these functions. So my question: Is there anything I can do to get these functions to work for me or troubleshoot the issue? (I can attach other scripts and errors if needed)
Script:
$Admin = "Administrator","Public","Default","Administrator"
foreach($file in Get-ChildItem C:\Users\)
{
if ($file -in $Admin)
{
Write-Host = "`r`nUser account is" $file ". This is an Administrator Account, it will not be deleted."
}
else
{
Write-Host = "`r`nUser account is" $file ". Checking profiles age..."
$FileDate = (Get-item C:\Users\$file).CreationTime
Write-Host = $FileDate
$TestDate = (Get-Date).addDays(-30)
Write-Host = $TestDate
If ($FileDate -lt $TestDate)
{
Write-Host = "Since" $file "is older than 30 Days (" $FileDate ") it will be deleted."
$UserAccountPath = "C:\\Users\\$file"
$WMIQuery = "SELECT * FROM Win32_UserProfile WHERE localpath = '$UserAccountPath'"
$UserProfile = get-wmiobject win32_userprofile | Where-Object localpath -EQ $file.FullName
Remove-WmiObject -InputObject "$UserProfile"
}
else
{
Write-Host = "Since File is dated less than 30 days old (" $FileDate ") it will not need to be deleted."
}
}
}
Error:
Remove-WmiObject :
At line:28 char:17
+ Remove-WmiObject -InputObject "$UserProfile"
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Remove-WmiObject], FileLoadException
+ FullyQualifiedErrorId : System.IO.FileLoadException,Microsoft.PowerShell.Commands.RemoveWmiObject
My past post might help for some background info: How to delete old profiles with script .

Answer 1

$sidToRemove = [System.Security.Principal.SecurityIdentifier]::new([System.Security.Principal.WellKnownSidType]::BuiltinAdministratorsSid, $null).ToString()
Get-WmiObject -Class Win32_UserProfile -Filter "SID = '$($sidToRemove)' AND SPECIAL = 'FALSE' AND LOADED = 'FALSE'" |
ForEach-Object { $_.Delete() }
And you can not remove public and default profiles as they are not profiles actually.