diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
index 346745edd..54da5cb6e 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
@@ -64,6 +64,7 @@ import org.jackhuang.hmcl.util.*;
 import org.jackhuang.hmcl.util.io.FileUtils;
 import org.jackhuang.hmcl.util.platform.Architecture;
 import org.jackhuang.hmcl.util.platform.OperatingSystem;
+import org.jetbrains.annotations.Nullable;
 
 import java.nio.file.Path;
 import java.util.List;
@@ -433,26 +434,34 @@ public final class Controllers {
         dialog(new MessageDialogPane.Builder(text, title, type).actionOrCancel(actionButton, cancel).build());
     }
 
-    public static void confirmActionDanger(String text, String title, Runnable resolve, Runnable cancel) {
-        JFXButton btnYes = new JFXButton(i18n("button.ok"));
-        btnYes.getStyleClass().add("dialog-error");
-        btnYes.setOnAction(e -> resolve.run());
-        btnYes.setDisable(true);
+    public static void confirmWithCountdown(String text, String title, int seconds, MessageType messageType,
+                                            @Nullable Runnable ok, @Nullable Runnable cancel) {
+        if (seconds <= 0)
+            throw new IllegalArgumentException("Seconds must be greater than 0");
 
-        int countdown = 10;
-        KeyFrame[] keyFrames = new KeyFrame[countdown + 1];
-        for (int i = 0; i < countdown; i++) {
+        JFXButton btnOk = new JFXButton(i18n("button.ok"));
+        btnOk.getStyleClass().add(messageType == MessageType.WARNING || messageType == MessageType.ERROR
+                ? "dialog-error"
+                : "dialog-accept");
+
+        if (ok != null)
+            btnOk.setOnAction(e -> ok.run());
+        btnOk.setDisable(true);
+
+        KeyFrame[] keyFrames = new KeyFrame[seconds + 1];
+        for (int i = 0; i < seconds; i++) {
             keyFrames[i] = new KeyFrame(Duration.seconds(i),
-                    new KeyValue(btnYes.textProperty(), i18n("button.ok.countdown", countdown - i)));
+                    new KeyValue(btnOk.textProperty(), i18n("button.ok.countdown", seconds - i)));
         }
-        keyFrames[countdown] = new KeyFrame(Duration.seconds(countdown),
-                new KeyValue(btnYes.textProperty(), i18n("button.ok")),
-                new KeyValue(btnYes.disableProperty(), false));
+        keyFrames[seconds] = new KeyFrame(Duration.seconds(seconds),
+                new KeyValue(btnOk.textProperty(), i18n("button.ok")),
+                new KeyValue(btnOk.disableProperty(), false));
 
         Timeline timeline = new Timeline(keyFrames);
-        confirmAction(text, title, MessageType.WARNING, btnYes, () -> {
+        confirmAction(text, title, messageType, btnOk, () -> {
             timeline.stop();
-            cancel.run();
+            if (cancel != null)
+                cancel.run();
         });
         timeline.play();
     }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/account/CreateAccountPane.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/account/CreateAccountPane.java
index 3118b3259..e2c00c369 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/account/CreateAccountPane.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/account/CreateAccountPane.java
@@ -264,10 +264,12 @@ public class CreateAccountPane extends JFXDialogLayout implements DialogAware {
         };
 
         if (factory instanceof OfflineAccountFactory && username != null && (!USERNAME_CHECKER_PATTERN.matcher(username).matches() || username.length() > 16)) {
-            Controllers.confirmActionDanger(i18n("account.methods.offline.name.invalid"), i18n("message.warning"), doCreate, () -> {
-                body.setDisable(false);
-                spinner.hideSpinner();
-            });
+            Controllers.confirmWithCountdown(i18n("account.methods.offline.name.invalid"), i18n("message.warning"), 10,
+                    MessageDialogPane.MessageType.WARNING,
+                    doCreate, () -> {
+                        body.setDisable(false);
+                        spinner.hideSpinner();
+                    });
         } else {
             doCreate.run();
         }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/terracotta/TerracottaControllerPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/terracotta/TerracottaControllerPage.java
index 04865585c..efb753f67 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/terracotta/TerracottaControllerPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/terracotta/TerracottaControllerPage.java
@@ -138,13 +138,13 @@ public class TerracottaControllerPage extends StackPane {
             TerracottaState state = UI_STATE.get(), next;
             if (state instanceof TerracottaState.Uninitialized || state instanceof TerracottaState.Preparing preparing && preparing.hasInstallFence()) {
                 if (state instanceof TerracottaState.Uninitialized uninitialized && !uninitialized.hasLegacy()) {
-                    Controllers.confirmActionDanger(i18n("terracotta.confirm.desc"), i18n("terracotta.confirm.title"), () -> {
-                        TerracottaState.Preparing s = TerracottaManager.install(path);
-                        if (s != null) {
-                            UI_STATE.set(s);
-                        }
-                    }, () -> {
-                    });
+                    Controllers.confirmWithCountdown(i18n("terracotta.confirm.desc"), i18n("terracotta.confirm.title"), 5,
+                            MessageDialogPane.MessageType.INFO, () -> {
+                                TerracottaState.Preparing s = TerracottaManager.install(path);
+                                if (s != null) {
+                                    UI_STATE.set(s);
+                                }
+                            }, null);
                     return;
                 }
 
@@ -202,7 +202,7 @@ public class TerracottaControllerPage extends StackPane {
                             }
                         }
                     } else {
-                        Controllers.confirmActionDanger(i18n("terracotta.confirm.desc"), i18n("terracotta.confirm.title"), () -> {
+                        Controllers.confirmWithCountdown(i18n("terracotta.confirm.desc"), i18n("terracotta.confirm.title"), 5, MessageDialogPane.MessageType.INFO, () -> {
                             globalConfig().setTerracottaAgreementVersion(1);
                             TerracottaState.Preparing s = TerracottaManager.install(null);
                             if (s != null) {