diff --git a/profiles/DerGeret/Windows/Setup.ps1 b/profiles/DerGeret/Windows/Setup.ps1
index 414e6fc3..47c50398 100644
--- a/profiles/DerGeret/Windows/Setup.ps1
+++ b/profiles/DerGeret/Windows/Setup.ps1
@@ -15,8 +15,8 @@ $Global:SetupConfigPostprocessor = {
     $installationPartition.InnerText = "$($newIndex + 1)";
     $partitionCreations = $diskConfig.SelectSingleNode("./ua:CreatePartitions", $namespace);
     $newPartition = $partitionCreations.SelectNodes("./ua:CreatePartition", $namespace)[0].CloneNode($true);
-    $newPartition.SelectSingleNode("./ua:Order", $namespace).InnerText = "$newIndex";
-    $newPartition.SelectSingleNode("./ua:Size", $namespace).InnerText = "65536"; # For testing purposes
+
+    $offset = 0;
 
     for ($i = 0; $i -lt $partitionCreations.ChildNodes.Count; $i++) {
         $partition = $partitionCreations.ChildNodes[$i];
@@ -24,9 +24,15 @@ $Global:SetupConfigPostprocessor = {
 
         if ($order -ge $newIndex) {
             $partition.SelectSingleNode("./ua:Order", $namespace).InnerText = "$($order + 1)";
+        } else {
+            $offset += [int]$partition.SelectSingleNode("./ua:Size", $namespace).InnerText;
         }
     }
 
+    # Add 1 TB space before Windows installation... wha-!? For Linux, ofc! I use Arch Linux, btw.
+    $newPartition.SelectSingleNode("./ua:Size", $namespace).InnerText = "$((1 * 1024 * 1024) - $offset)";
+    $newPartition.SelectSingleNode("./ua:Order", $namespace).InnerText = "$newIndex";
+
     $null = $partitionCreations.AppendChild($newPartition);
 
     $partitionModifications = $diskConfig.SelectSingleNode("./ua:ModifyPartitions", $namespace);