diff --git a/Knossos.NET/ViewModels/Templates/Tasks/InstallBuild.cs b/Knossos.NET/ViewModels/Templates/Tasks/InstallBuild.cs
index 0462e205..0e4dc0de 100644
--- a/Knossos.NET/ViewModels/Templates/Tasks/InstallBuild.cs
+++ b/Knossos.NET/ViewModels/Templates/Tasks/InstallBuild.cs
@@ -17,6 +17,7 @@ public partial class TaskItemViewModel : ViewModelBase
         public async Task<FsoBuild?> InstallBuild(FsoBuild build, FsoBuildItemViewModel sender, CancellationTokenSource? cancelSource = null, Mod? modJson = null, List<ModPackage>? modifyPkgs = null, bool cleanupOldVersions = false)
         {
             string? modPath = null;
+            bool installed = false;
             try
             {
                 if (!TaskIsSet)
@@ -82,6 +83,7 @@ public partial class TaskItemViewModel : ViewModelBase
                         if (modifyPkgs != null)
                         {
                             //Modify Build
+                            installed = true;
                             foreach (var pkg in modifyPkgs)
                             {
                                 var installedPkg = modJson.packages.FirstOrDefault(p => p.name == pkg.name && p.folder == pkg.folder);
@@ -583,7 +585,7 @@ Task cancel requested by user
                 Info = "Task Cancelled";
                 try
                 {
-                    if (modPath != null)
+                    if (modPath != null && !installed)
                     {
                         Directory.Delete(modPath, true);
                     }
@@ -624,7 +626,7 @@ await Dispatcher.UIThread.InvokeAsync(async () =>
                 Info = "Task Failed";
                 try
                 {
-                    if (modPath != null)
+                    if (modPath != null && !installed)
                     {
                         Directory.Delete(modPath, true);
                     }