Set-StrictMode -Version 'Latest'

$AdObj = New-Object System.Security.Principal.NTAccount($User)
$strSID = $AdObj.Translate([System.Security.Principal.SecurityIdentifier])
$Sid = $strSID.Value
Assert-NotNull $Sid

$Path = "Registry::HKEY_USERS$SidEnvironment"

$Property = Get-ItemProperty $Path -Name $Variable -ErrorAction Ignore
if($Property) {
    Write-Warning "Removing $Variable property on path $path from user $User"
    Remove-ItemProperty $Path -Name $Variable
}else{
    Write-Host "No such Variable exists"
}