diff --git a/scripts/Common/Scripts/Config.ps1 b/scripts/Common/Scripts/Config.ps1
index 6f7dccc4..f615514f 100644
--- a/scripts/Common/Scripts/Config.ps1
+++ b/scripts/Common/Scripts/Config.ps1
@@ -156,6 +156,14 @@ $null = New-Module {
         Invoke-ConfigScript "getConfig $Name --json $ArgumentList";
     }
 
+    <#
+        .SYNOPSIS
+        Gets the name of the config root.
+    #>
+    function Get-ConfigRootName {
+        return "valhalla$($IsWindows ? ".windows" : '')";
+    }
+
     <#
         .SYNOPSIS
         Gets a user configuration.
@@ -168,13 +176,13 @@ $null = New-Module {
     #>
     function Get-UserConfig {
         param(
-            [string] $UserName = $env:UserName,
+            [string] $UserName = ($IsWindows ? $env:UserName : $env:USER),
             [Parameter(Mandatory, Position = 0)]
             [string] $Name
         )
 
         if ((Get-Users) -contains $UserName) {
-            Get-Config "valhalla.windows.users.$UserName.$Name";
+            Get-Config "$(Get-ConfigRootName).users.$UserName.$Name";
         } else {
             return $null;
         }
@@ -202,7 +210,7 @@ $null = New-Module {
     function Get-Users {
         [OutputType([string[]])]
         param()
-        Get-Attributes "valhalla.windows.users";
+        Get-Attributes "$(Get-ConfigRootName).users";
     }
 
     <#
@@ -212,7 +220,7 @@ $null = New-Module {
     function Get-SetupUser {
         [OutputType([string])]
         param()
-        Get-Config "valhalla.windows.setupUser";
+        Get-Config "$(Get-ConfigRootName).setupUser";
     }
 
     <#
@@ -416,7 +424,7 @@ $null = New-Module {
         Checks whether the current user is the setup user.
     #>
     function Test-SetupUser {
-        ($IsWindows ? $env:UserName : $env:USER) -eq (Get-Config "valhalla.windows.setupUser");
+        ($IsWindows ? $env:UserName : $env:USER) -eq (Get-SetupUser);
     }
 
     <#