Changes to registry load/unload

setupReg.ps1

@@ -9,7 +9,11 @@ function UserReg {
     if ($null -ne $UserProfile) {
         $UserSID = $UserProfile.SID
         if( -not (Test-Path -Path "Registry::HKEY_USERS\$UserSID" -PathType Container) ) {
-            REG LOAD HKEY_USERS\$UserSID "C:\Users\$Username\NTUSER.DAT" 
+            $res = REG LOAD HKEY_USERS\$UserSID "C:\Users\$Username\NTUSER.DAT"
+            if ($res -ne 0) {
+                Write-Host "Failed to load $Username's HKU registry hive."
+                return $null, $null
+            }
         }
         Write-Host "Loaded $Username's HKU registry hive."
         return $UserSID, "Registry::HKEY_USERS\$UserSID"
@@ -80,9 +84,9 @@ function SetupEleveReg {
         foreach ($valueName in $applications) {
             New-ItemProperty -Path $DisallowRunPath -Name $valueName -Value $valueName -PropertyType String
         }
-        Write-Host "Added entries to DisallowRun for cmd.exe and powershell.exe."
+        Write-Host "Added registry entries"
         Write-Host "Unloading registry HIVE"
-        REG UNLOAD HKEY_USERS\$UserSID
+        Start-Process -FilePath "cmd.exe" -Verb RunAs -ArgumentList "REG UNLOAD HKEY_USERS\$UserSID"
     } else {
         Write-Host "Unable to get the user's HKU registry."
     }