diff --git a/src/main/java/cc/ryanc/halo/model/support/Theme.java b/src/main/java/cc/ryanc/halo/model/support/Theme.java
index 782be3561..508430b30 100644
--- a/src/main/java/cc/ryanc/halo/model/support/Theme.java
+++ b/src/main/java/cc/ryanc/halo/model/support/Theme.java
@@ -5,9 +5,7 @@ import lombok.Data;
 import java.io.Serializable;
 
 /**
- * <pre>
- *     主题信息
- * </pre>
+ * Theme DTO
  *
  * @author : RYAN0UP
  * @date : 2018/1/3
@@ -18,17 +16,22 @@ public class Theme implements Serializable {
     private static final long serialVersionUID = 1L;
 
     /**
-     * 主题名称
+     * theme name
      */
     private String themeName;
 
     /**
-     * 是否支持设置
+     * is support setting options
      */
     private boolean hasOptions;
 
     /**
-     * 是否支持更新
+     * is support update
      */
     private boolean hasUpdate;
+
+    /**
+     * is internal theme
+     */
+    private boolean isInternal;
 }
diff --git a/src/main/java/cc/ryanc/halo/utils/ThemeUtils.java b/src/main/java/cc/ryanc/halo/utils/ThemeUtils.java
index da3ecb7e4..f5021298f 100644
--- a/src/main/java/cc/ryanc/halo/utils/ThemeUtils.java
+++ b/src/main/java/cc/ryanc/halo/utils/ThemeUtils.java
@@ -1,6 +1,9 @@
 package cc.ryanc.halo.utils;
 
+import cc.ryanc.halo.model.support.HaloConst;
 import cc.ryanc.halo.model.support.Theme;
+import cc.ryanc.halo.web.controller.core.BaseContentController;
+import cn.hutool.core.text.StrBuilder;
 import cn.hutool.core.util.StrUtil;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.util.ResourceUtils;
@@ -27,8 +30,8 @@ public class ThemeUtils {
     public static List<Theme> getThemes() {
         final List<Theme> themes = new ArrayList<>();
         try {
-            themes.addAll(getThemesByPath(getInternalThemesPath()));
-            themes.addAll(getThemesByPath(getUsersThemesPath()));
+            themes.addAll(getThemesByPath(getInternalThemesPath(), true));
+            themes.addAll(getThemesByPath(getUsersThemesPath(), false));
         } catch (Exception e) {
             log.error("Themes scan failed", e);
         }
@@ -41,7 +44,7 @@ public class ThemeUtils {
      * @param file file
      * @return List<Theme>
      */
-    private static List<Theme> getThemesByPath(File themesPath) {
+    private static List<Theme> getThemesByPath(File themesPath, boolean isInternal) {
         final List<Theme> themes = new ArrayList<>();
         try {
             final File[] files = themesPath.listFiles();
@@ -67,6 +70,7 @@ public class ThemeUtils {
                         } else {
                             theme.setHasUpdate(false);
                         }
+                        theme.setInternal(isInternal);
                         themes.add(theme);
                     }
                 }
@@ -78,7 +82,7 @@ public class ThemeUtils {
     }
 
     /**
-     * Get internal themes
+     * Get internal themes path
      *
      * @return File
      * @throws FileNotFoundException FileNotFoundException
@@ -88,7 +92,7 @@ public class ThemeUtils {
     }
 
     /**
-     * Get user's themes
+     * Get user's themes path
      *
      * @return File
      */
@@ -96,6 +100,20 @@ public class ThemeUtils {
         return new File(System.getProperties().getProperty("user.home"), "halo/templates/themes");
     }
 
+    /**
+     * Get themes path by theme name
+     *
+     * @param themeName themeName
+     * @return File
+     */
+    public static File getThemesPath(String themeName) throws FileNotFoundException {
+        if (isInternal(themeName)) {
+            return getInternalThemesPath();
+        } else {
+            return getUsersThemesPath();
+        }
+    }
+
     /**
      * Get theme templates
      *
@@ -105,7 +123,7 @@ public class ThemeUtils {
     public static List<String> getTplName(String theme) {
         final List<String> templates = new ArrayList<>();
         try {
-            final File themesPath = new File(getUsersThemesPath(), "templates/themes/" + theme);
+            final File themesPath = new File(getThemesPath(theme), theme);
             final File modulePath = new File(themesPath.getAbsolutePath(), "module");
             final File[] baseFiles = themesPath.listFiles();
             final File[] moduleFiles = modulePath.listFiles();
@@ -134,9 +152,9 @@ public class ThemeUtils {
      *
      * @return List
      */
-    public static List<String> getCustomTpl(String theme) {
+    public static List<String> getCustomTpl(String theme) throws FileNotFoundException {
         final List<String> templates = new ArrayList<>();
-        final File themePath = new File(getUsersThemesPath(), "templates/themes/" + theme);
+        final File themePath = new File(getThemesPath(theme), theme);
         final File[] themeFiles = themePath.listFiles();
         if (null != themeFiles && themeFiles.length > 0) {
             for (File file : themeFiles) {
@@ -148,4 +166,41 @@ public class ThemeUtils {
         }
         return templates;
     }
+
+
+    /**
+     * Judging whether template exists under the specified theme
+     *
+     * @param template template
+     * @return boolean
+     */
+    public static boolean isTemplateExist(String template) throws FileNotFoundException {
+        boolean result = false;
+        StrBuilder templatePath = new StrBuilder(BaseContentController.THEME);
+        templatePath.append("/");
+        templatePath.append(template);
+        File file = new File(getThemesPath(BaseContentController.THEME), templatePath.toString());
+        if (file.exists()) {
+            result = true;
+        }
+        return result;
+    }
+
+    /**
+     * Judging whether the theme is a internal theme or not
+     *
+     * @param themeName themeName
+     * @return boolean
+     */
+    public static boolean isInternal(String themeName) {
+        boolean result = false;
+        List<Theme> themes = HaloConst.THEMES;
+        for (Theme theme : themes) {
+            if (theme.getThemeName().equals(themeName) && theme.isInternal()) {
+                result = true;
+                break;
+            }
+        }
+        return result;
+    }
 }
diff --git a/src/main/java/cc/ryanc/halo/web/controller/admin/ThemeController.java b/src/main/java/cc/ryanc/halo/web/controller/admin/ThemeController.java
index d9d6de1d4..2e5500633 100644
--- a/src/main/java/cc/ryanc/halo/web/controller/admin/ThemeController.java
+++ b/src/main/java/cc/ryanc/halo/web/controller/admin/ThemeController.java
@@ -129,7 +129,7 @@ public class ThemeController extends BaseController {
     @GetMapping(value = "/remove")
     public String removeTheme(@RequestParam("themeName") String themeName) {
         try {
-            final File themePath = new File(ThemeUtils.getUsersThemesPath(), themeName);
+            final File themePath = new File(ThemeUtils.getThemesPath(themeName), themeName);
             FileUtil.del(themePath);
         } catch (Exception e) {
             log.error("Delete theme failed: {}", e.getMessage());
@@ -244,7 +244,7 @@ public class ThemeController extends BaseController {
     public String getTplContent(@RequestParam("tplName") String tplName) {
         String tplContent = "";
         try {
-            final StrBuilder themePath = new StrBuilder(ThemeUtils.getUsersThemesPath().getAbsolutePath());
+            final StrBuilder themePath = new StrBuilder(ThemeUtils.getThemesPath(BaseContentController.THEME).getAbsolutePath());
             themePath.append(BaseContentController.THEME);
             themePath.append("/");
             themePath.append(tplName);
@@ -272,7 +272,7 @@ public class ThemeController extends BaseController {
             return new JsonResult(0, localeMessage("code.admin.theme.edit.no-content"));
         }
         try {
-            final StrBuilder themePath = new StrBuilder(ThemeUtils.getUsersThemesPath().getAbsolutePath());
+            final StrBuilder themePath = new StrBuilder(ThemeUtils.getThemesPath(BaseContentController.THEME).getAbsolutePath());
             themePath.append(BaseContentController.THEME);
             themePath.append("/");
             themePath.append(tplName);
diff --git a/src/main/java/cc/ryanc/halo/web/controller/core/CommonController.java b/src/main/java/cc/ryanc/halo/web/controller/core/CommonController.java
index 5994053a9..55d415871 100644
--- a/src/main/java/cc/ryanc/halo/web/controller/core/CommonController.java
+++ b/src/main/java/cc/ryanc/halo/web/controller/core/CommonController.java
@@ -3,6 +3,7 @@ package cc.ryanc.halo.web.controller.core;
 import cc.ryanc.halo.logging.Logger;
 import cc.ryanc.halo.model.entity.User;
 import cc.ryanc.halo.model.support.HaloConst;
+import cc.ryanc.halo.utils.ThemeUtils;
 import cn.hutool.core.text.StrBuilder;
 import org.springframework.boot.web.servlet.error.ErrorController;
 import org.springframework.stereotype.Controller;
@@ -11,6 +12,7 @@ import org.springframework.web.bind.annotation.GetMapping;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpSession;
+import java.io.FileNotFoundException;
 
 /**
  * <pre>
@@ -92,7 +94,10 @@ public class CommonController implements ErrorController {
      * @return String
      */
     @GetMapping(value = "/404")
-    public String contentNotFround() {
+    public String contentNotFround() throws FileNotFoundException {
+        if(ThemeUtils.isTemplateExist("404.ftl")){
+            return "common/error/404";
+        }
         StrBuilder path = new StrBuilder("themes/");
         path.append(BaseContentController.THEME);
         path.append("/404");
@@ -105,7 +110,10 @@ public class CommonController implements ErrorController {
      * @return template path:
      */
     @GetMapping(value = "/500")
-    public String contentInternalError() {
+    public String contentInternalError() throws FileNotFoundException {
+        if(ThemeUtils.isTemplateExist("500.ftl")){
+            return "common/error/404";
+        }
         StrBuilder path = new StrBuilder("themes/");
         path.append(BaseContentController.THEME);
         path.append("/500");
diff --git a/src/main/java/cc/ryanc/halo/web/controller/core/InstallController.java b/src/main/java/cc/ryanc/halo/web/controller/core/InstallController.java
index 64921db36..b0acb866e 100644
--- a/src/main/java/cc/ryanc/halo/web/controller/core/InstallController.java
+++ b/src/main/java/cc/ryanc/halo/web/controller/core/InstallController.java
@@ -2,6 +2,7 @@ package cc.ryanc.halo.web.controller.core;
 
 import cc.ryanc.halo.model.entity.*;
 import cc.ryanc.halo.model.enums.CommentStatus;
+import cc.ryanc.halo.model.enums.PostStatus;
 import cc.ryanc.halo.model.support.JsonResult;
 import cc.ryanc.halo.service.*;
 import cc.ryanc.halo.utils.MarkdownUtils;
@@ -133,9 +134,9 @@ public class InstallController {
                     "欢迎使用Halo进行创作，删除这篇文章后赶紧开始吧。");
             post.setFormatContent(MarkdownUtils.renderMarkdown(post.getOriginalContent()));
             post.setSummary("欢迎使用Halo进行创作，删除这篇文章后赶紧开始吧。");
-            post.setStatus(0);
+            post.setStatus(PostStatus.PUBLISHED);
             post.setUrl("hello-halo");
-            post.setDisallowComment(1);
+            post.setDisallowComment(true);
             post.setThumbnail("/static/halo-frontend/images/thumbnail/thumbnail-" + RandomUtil.randomInt(1, 11) + ".jpg");
             postService.create(post);
 
diff --git a/src/main/resources/templates/common/error/404.ftl b/src/main/resources/templates/common/error/404.ftl
index 607becad3..44d986c4b 100644
--- a/src/main/resources/templates/common/error/404.ftl
+++ b/src/main/resources/templates/common/error/404.ftl
@@ -1,52 +1 @@
-<#compress>
-<!DOCTYPE html>
-<html lang="zh">
-<head>
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
-    <meta name="renderer" content="webkit">
-    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
-    <title>404 Not Found</title>
-    <link href="//cdnjs.loli.net/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
-    <link href="//cdnjs.loli.net/ajax/libs/animate.css/3.7.0/animate.min.css" rel="stylesheet">
-    <style type="text/css" rel="stylesheet">
-        body{margin:0}*{box-sizing:border-box}h1,h2{margin:0}a{color:#fff;text-decoration:none}body,html{font-family:-apple-system,system-ui,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.fullscreen{background-position:50% 50%;background-size:cover}.fullscreen,.fullscreen .backColor{position:absolute;top:0;left:0;width:100%;height:100%}.fullscreen .backColor{background-color:rgba(0,0,0,.1)}.infos{display:flex;text-align:center;align-items:center;justify-content:center}.infos,.main-content{position:absolute;top:0;left:0;width:100%;height:100%;color:#fff}.main-content{background: #833ab4;background: -webkit-linear-gradient(to right, #833ab4, #fd1d1d, #fcb045);background: linear-gradient(to right, #833ab4, #fd1d1d, #fcb045);}.errorPage{position:relative;width:100vw;height:100vh}.infos-h1{margin:0;font-size:5em;line-height:1}.infos-h1 h1{font-weight:200}.footer{position:absolute;right:1rem;bottom:1rem;left:1rem;z-index:9999;font-size:14px}.infos-h2{font-size:24px}.infos-h2 a:hover{color:#7a8d85}
-    </style>
-</head>
-<body>
-    <div class="container">
-        <div class="errorPage">
-            <div class="main-content ">
-                <div class="fullscreen">
-                    <div class="backColor"></div>
-                </div>
-                <div class="infos">
-                    <div class="infos-main">
-                        <div class="infos-h1"><h1>404</h1></div>
-                        <div class="infos-h2">
-                            <a href="javascript:window.history.back()" title="返回上一页">
-                                <i class="fa fa-chevron-left"></i>
-                            </a>
-                            <a href="/" title="返回到主页">
-                                <i class="fa fa-home"></i>
-                            </a>
-                        </div>
-                    </div>
-                </div>
-                <div class="footer">
-                    <span>Copyright © 2018</span>
-                    <a href="${options.blog_url!}">${options.blog_title!'Halo'}</a>
-                    <span style="float: right">
-                            Background image from <a href="https://cn.bing.com/" target="_blank">Bing</a>.
-                    </span>
-                </div>
-            </div>
-        </div>
-    </div>
-</body>
-<script src="//cdnjs.loli.net/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
-<script>
-    eval(function(p,a,c,k,e,r){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)r[e(c)]=k[c]||e(c);k=[function(e){return r[e]}];e=function(){return'\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p}('$.o(\'m://q.8.n/?1=4%y%z%B.5.9%d.e%f%g%h%i%j%k\',l(b){6 a=b.p[0].1;6 c=$(\'.r\');c.t("u-v","1(4://s.w.5.x"+a+")");c.2(\'3 A\');$(\'.7-C\').2(\'3 D\');$(\'.7-E\').2(\'3 F\')});',42,42,'|url|addClass|animated|http|bing|var|infos|afeld|com||||2FHPImageArchive|aspx|3Fformat|3Djs|26idx|3D0|26n|3D1|function|https|me|get|images|jsonp|fullscreen||css|background|image|cn|net|3A|2F|fadeIn|2Fcn|h1|shake|h2|fadeInDown'.split('|'),0,{}))
-</script>
-</html>
-</#compress>
+404 Not Found
diff --git a/src/main/resources/templates/common/error/500.ftl b/src/main/resources/templates/common/error/500.ftl
index 3c3759f5d..d2bb962a3 100644
--- a/src/main/resources/templates/common/error/500.ftl
+++ b/src/main/resources/templates/common/error/500.ftl
@@ -1,52 +1 @@
-<#compress>
-<!DOCTYPE html>
-<html lang="zh">
-<head>
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
-    <meta name="renderer" content="webkit">
-    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
-    <title>500 Error Page</title>
-    <link href="//cdnjs.loli.net/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
-    <link href="//cdnjs.loli.net/ajax/libs/animate.css/3.7.0/animate.min.css" rel="stylesheet">
-    <style type="text/css" rel="stylesheet">
-        body{margin:0}*{box-sizing:border-box}h1,h2{margin:0}a{color:#fff;text-decoration:none}body,html{font-family:-apple-system,system-ui,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.fullscreen{background-position:50% 50%;background-size:cover}.fullscreen,.fullscreen .backColor{position:absolute;top:0;left:0;width:100%;height:100%}.fullscreen .backColor{background-color:rgba(0,0,0,.1)}.infos{display:flex;text-align:center;align-items:center;justify-content:center}.infos,.main-content{position:absolute;top:0;left:0;width:100%;height:100%;color:#fff}.main-content{background: #833ab4;background: -webkit-linear-gradient(to right, #833ab4, #fd1d1d, #fcb045);background: linear-gradient(to right, #833ab4, #fd1d1d, #fcb045);}.errorPage{position:relative;width:100vw;height:100vh}.infos-h1{margin:0;font-size:5em;line-height:1}.infos-h1 h1{font-weight:200}.footer{position:absolute;right:1rem;bottom:1rem;left:1rem;z-index:9999;font-size:14px}.infos-h2{font-size:24px}.infos-h2 a:hover{color:#7a8d85}
-    </style>
-</head>
-<body>
-<div class="container">
-    <div class="errorPage">
-        <div class="main-content ">
-            <div class="fullscreen">
-                <div class="backColor"></div>
-            </div>
-            <div class="infos">
-                <div class="infos-main">
-                    <div class="infos-h1"><h1>500</h1></div>
-                    <div class="infos-h2">
-                        <a href="javascript:window.history.back()" title="返回上一页">
-                            <i class="fa fa-chevron-left"></i>
-                        </a>
-                        <a href="/" title="返回到主页">
-                            <i class="fa fa-home"></i>
-                        </a>
-                    </div>
-                </div>
-            </div>
-            <div class="footer">
-                <span>Copyright © 2018</span>
-                <a href="${options.blog_title!}">${options.blog_title!'Halo'}</a>
-                <span style="float: right">
-                        Background image from <a href="https://cn.bing.com/" target="_blank">Bing</a>.
-                </span>
-            </div>
-        </div>
-    </div>
-</div>
-</body>
-<script src="//cdnjs.loli.net/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
-<script>
-    eval(function(p,a,c,k,e,r){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)r[e(c)]=k[c]||e(c);k=[function(e){return r[e]}];e=function(){return'\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p}('$.o(\'m://q.8.n/?1=4%y%z%B.5.9%d.e%f%g%h%i%j%k\',l(b){6 a=b.p[0].1;6 c=$(\'.r\');c.t("u-v","1(4://s.w.5.x"+a+")");c.2(\'3 A\');$(\'.7-C\').2(\'3 D\');$(\'.7-E\').2(\'3 F\')});',42,42,'|url|addClass|animated|http|bing|var|infos|afeld|com||||2FHPImageArchive|aspx|3Fformat|3Djs|26idx|3D0|26n|3D1|function|https|me|get|images|jsonp|fullscreen||css|background|image|cn|net|3A|2F|fadeIn|2Fcn|h1|shake|h2|fadeInDown'.split('|'),0,{}))
-</script>
-</html>
-</#compress>
+500 Internal Error