diff --git a/README.en.md b/README.en.md
index c77de28..ca20c1f 100644
--- a/README.en.md
+++ b/README.en.md
@@ -154,7 +154,7 @@ bash reinstall.sh centos   7|9  (9 is stream version)
 ### Feature 2: DD
 
 - Supports gzip, xz formats.
-- For machines with static IP, DD Windows, and the script will automatically configure the IP.
+- A machine with a static IP running DD Windows will automatically configure the IP, which may take a few minutes to complete after the first boot.
 
 > [!TIP]
 > Can monitor the progress through various methods (SSH, HTTP 80 port, VNC in the background, serial console).
diff --git a/README.md b/README.md
index 08a0c80..23a257f 100644
--- a/README.md
+++ b/README.md
@@ -154,7 +154,7 @@ bash reinstall.sh centos   7|9  (9 为 stream 版本)
 ### 功能 2: DD
 
 - 支持 gzip、xz 格式
-- 静态 IP 的机器 DD Windows，会自动配置好 IP
+- 静态 IP 的机器 DD Windows，会自动配置好 IP，可能首次开机后几分钟才完成配置
 
 > [!TIP]
 > 可通过多种方式（SSH、HTTP 80 端口、后台 VNC、串行控制台）查看安装进度。
diff --git a/reinstall.sh b/reinstall.sh
index 3a24963..6e371b4 100644
--- a/reinstall.sh
+++ b/reinstall.sh
@@ -454,11 +454,6 @@ parse_windows_image_name() {
     fi
 
     version=$1
-    # 填写 windows longhorn serverdatacenter 时，寻找 windows server 2008 serverdatacenter iso
-    if [ "$version" = longhorn ]; then
-        server=server
-        version=2008
-    fi
     shift
 
     if [ "$1" = r2 ]; then
@@ -467,8 +462,8 @@ parse_windows_image_name() {
     fi
 
     edition=
-    for i in "$@"; do
-        case "$i" in
+    while [ $# -gt 0 ]; do
+        case "$1" in
         # windows 10 enterprise n ltsc 2021
         k | n | kn) ;;
         *)
@@ -972,15 +967,16 @@ setos() {
 
     setos_windows() {
         if [ -z "$iso" ]; then
+            # 查找时将 windows longhorn serverdatacenter 改成 windows server 2008 serverdatacenter
+            image_name=${image_name/windows longhorn server/windows server 2008 server}
             echo "iso url is not set. Try to find it."
             find_windows_iso
         fi
 
-        # 防呆设计
-        # 将 windows server 2008 改成 windows longhorn
-        if ! echo "$image_name" | grep -q r2; then
-            image_name=${image_name/server 2008/longhorn}
-        fi
+        # 将上面的 windows server 2008 serverdatacenter 改回 windows longhorn serverdatacenter
+        # 也能纠正用户输入了 windows server 2008 serverdatacenter
+        # 注意 windows server 2008 r2 serverdatacenter 不用改
+        image_name=${image_name/windows server 2008 server/windows longhorn server}
 
         test_url $iso 'iso|dos/mbr'
         eval "${step}_iso='$iso'"