diff --git a/samples/angular/MusicStore/Startup.cs b/samples/angular/MusicStore/Startup.cs
index c0dd2054b4..599442ae99 100755
--- a/samples/angular/MusicStore/Startup.cs
+++ b/samples/angular/MusicStore/Startup.cs
@@ -86,7 +86,6 @@ namespace MusicStore
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/samples/misc/ES2015Transpilation/Startup.cs b/samples/misc/ES2015Transpilation/Startup.cs
index 7c6fbaef34..0769030e9d 100755
--- a/samples/misc/ES2015Transpilation/Startup.cs
+++ b/samples/misc/ES2015Transpilation/Startup.cs
@@ -54,7 +54,6 @@ namespace ES2015Example
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/samples/misc/Webpack/Startup.cs b/samples/misc/Webpack/Startup.cs
index 15d11f675f..4928d4c1be 100755
--- a/samples/misc/Webpack/Startup.cs
+++ b/samples/misc/Webpack/Startup.cs
@@ -41,7 +41,6 @@ namespace Webpack
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/samples/react/MusicStore/Startup.cs b/samples/react/MusicStore/Startup.cs
index 94e2e1d5fd..7d9ba015b2 100755
--- a/samples/react/MusicStore/Startup.cs
+++ b/samples/react/MusicStore/Startup.cs
@@ -96,7 +96,6 @@ namespace MusicStore
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/samples/react/ReactGrid/Startup.cs b/samples/react/ReactGrid/Startup.cs
index 1cb9501bab..de9932933b 100755
--- a/samples/react/ReactGrid/Startup.cs
+++ b/samples/react/ReactGrid/Startup.cs
@@ -54,7 +54,6 @@ namespace ReactGrid
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/templates/Angular2Spa/Startup.cs b/templates/Angular2Spa/Startup.cs
index fa501625a3..899442c82f 100755
--- a/templates/Angular2Spa/Startup.cs
+++ b/templates/Angular2Spa/Startup.cs
@@ -53,7 +53,6 @@ namespace WebApplicationBasic
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/templates/KnockoutSpa/Startup.cs b/templates/KnockoutSpa/Startup.cs
index fa501625a3..899442c82f 100755
--- a/templates/KnockoutSpa/Startup.cs
+++ b/templates/KnockoutSpa/Startup.cs
@@ -53,7 +53,6 @@ namespace WebApplicationBasic
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/templates/ReactReduxSpa/Startup.cs b/templates/ReactReduxSpa/Startup.cs
index 77f13babfb..f2bc5b5ace 100755
--- a/templates/ReactReduxSpa/Startup.cs
+++ b/templates/ReactReduxSpa/Startup.cs
@@ -54,7 +54,6 @@ namespace WebApplicationBasic
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/templates/ReactSpa/Startup.cs b/templates/ReactSpa/Startup.cs
index 77f13babfb..f2bc5b5ace 100755
--- a/templates/ReactSpa/Startup.cs
+++ b/templates/ReactSpa/Startup.cs
@@ -54,7 +54,6 @@ namespace WebApplicationBasic
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()
diff --git a/templates/WebApplicationBasic/Startup.cs b/templates/WebApplicationBasic/Startup.cs
index e84110955d..9163881b37 100755
--- a/templates/WebApplicationBasic/Startup.cs
+++ b/templates/WebApplicationBasic/Startup.cs
@@ -38,7 +38,6 @@ namespace WebApplicationBasic
         {
             var host = new WebHostBuilder()
                 .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseKestrel()
                 .UseStartup<Startup>()