Refactor windows configuration script

scripts/Windows/Scripts/Registry.ps1

@@ -0,0 +1,19 @@
+using namespace Microsoft.Win32;
+
+$null = New-Module {
+    function Edit-DefaultUserKey {
+        param(
+            [scriptblock] $Action
+        )
+
+        $rootPath = "HKLM:\DefaultUser";
+        $regRootPath = $rootPath -replace "^(\w+):([\\/]|$)","`$1`$2";
+        $hivePath = "$env:SystemDrive\Users\Default\NTUSER.dat";
+        $null = & reg load $regRootPath $hivePath;
+        [RegistryKey] $root = Get-Item $rootPath;
+        & $Action -Key $root;
+        $root.Handle.Close();
+        [System.GC]::Collect();
+        & reg unload $regRootPath;
+    }
+}

scripts/Windows/Scripts/System.ps1

@@ -0,0 +1,8 @@
+<#
+    .SYNOPSIS
+    Creates a new temporary directory.
+#>
+function New-TemporaryDirectory {
+    $path = Join-Path ([System.IO.Path]::GetTempPath()) ([System.IO.Path]::GetRandomFileName());
+    New-Item -ItemType Directory $path;
+}