diff --git a/README.md b/README.md
index 23fb0cd..f86f3fe 100644
--- a/README.md
+++ b/README.md
@@ -238,7 +238,7 @@ mkdir -p data cache media downloads
 ```bash
 cat > .env <<'EOF'
 # 固定版本；需要升级时改成新的 MediaStationGo-vX.Y.Z 后执行 docker compose pull && docker compose up -d
-MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.30
+MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.31
 MEDIASTATION_HTTP_PORT=18080
 
 # 程序数据和缓存建议放在 MediaStationGo 部署目录下，便于备份和迁移。
@@ -307,7 +307,7 @@ vim docker-compose.yml
 #
 # 镜像版本：
 #   默认拉取 latest；如需固定版本，创建 .env 并写入：
-#     MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.30
+#     MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.31
 #
 # 路径映射总览：
 #   /data      程序数据目录。保存 SQLite 数据库、JWT secret、系统配置等，必须持久化。
@@ -516,7 +516,7 @@ docker compose up -d
 
 ```bash
 cat > .env <<'EOF'
-MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.30
+MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.31
 MEDIASTATION_HTTP_PORT=18080
 MEDIASTATION_DATA_DIR=./data
 MEDIASTATION_CACHE_DIR=./cache
@@ -779,26 +779,26 @@ cd MediaStationGo
 
 | 平台 | 包名示例 |
 | --- | --- |
-| Linux x86_64 | `MediaStationGo-v0.0.30-linux-amd64.tar.gz` |
-| Linux ARM64 | `MediaStationGo-v0.0.30-linux-arm64.tar.gz` |
-| Windows x86_64 | `MediaStationGo-v0.0.30-windows-amd64.zip` |
-| macOS Intel | `MediaStationGo-v0.0.30-darwin-amd64.tar.gz` |
-| macOS Apple Silicon | `MediaStationGo-v0.0.30-darwin-arm64.tar.gz` |
+| Linux x86_64 | `MediaStationGo-v0.0.31-linux-amd64.tar.gz` |
+| Linux ARM64 | `MediaStationGo-v0.0.31-linux-arm64.tar.gz` |
+| Windows x86_64 | `MediaStationGo-v0.0.31-windows-amd64.zip` |
+| macOS Intel | `MediaStationGo-v0.0.31-darwin-amd64.tar.gz` |
+| macOS Apple Silicon | `MediaStationGo-v0.0.31-darwin-arm64.tar.gz` |
 
 部署步骤：
 
 ```bash
 # Linux 示例
-tar -xzf MediaStationGo-v0.0.30-linux-amd64.tar.gz
-cd MediaStationGo-v0.0.30-linux-amd64
+tar -xzf MediaStationGo-v0.0.31-linux-amd64.tar.gz
+cd MediaStationGo-v0.0.31-linux-amd64
 MEDIASTATION_APP_PORT=18080 ./mediastation-go
 ```
 
 Windows：
 
 ```powershell
-Expand-Archive .\MediaStationGo-v0.0.30-windows-amd64.zip
-cd .\MediaStationGo-v0.0.30-windows-amd64
+Expand-Archive .\MediaStationGo-v0.0.31-windows-amd64.zip
+cd .\MediaStationGo-v0.0.31-windows-amd64
 $env:MEDIASTATION_APP_PORT = "18080"
 .\mediastation-go.exe
 ```
diff --git a/README_EN.md b/README_EN.md
index 16c91ec..1b89b6c 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -235,7 +235,7 @@ mkdir -p data cache media downloads
 
 ```bash
 cat > .env <<'EOF'
-MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.30
+MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.31
 MEDIASTATION_HTTP_PORT=18080
 MEDIASTATION_DATA_DIR=./data
 MEDIASTATION_CACHE_DIR=./cache
@@ -344,7 +344,7 @@ For production, pin a specific release tag instead of using `latest`. Recommende
 
 ```bash
 cat > .env <<'EOF'
-MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.30
+MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.31
 MEDIASTATION_HTTP_PORT=18080
 MEDIASTATION_DATA_DIR=./data
 MEDIASTATION_CACHE_DIR=./cache
@@ -593,25 +593,25 @@ Each release provides multi-platform archives:
 
 | Platform | Package example |
 | --- | --- |
-| Linux x86_64 | `MediaStationGo-v0.0.30-linux-amd64.tar.gz` |
-| Linux ARM64 | `MediaStationGo-v0.0.30-linux-arm64.tar.gz` |
-| Windows x86_64 | `MediaStationGo-v0.0.30-windows-amd64.zip` |
-| macOS Intel | `MediaStationGo-v0.0.30-darwin-amd64.tar.gz` |
-| macOS Apple Silicon | `MediaStationGo-v0.0.30-darwin-arm64.tar.gz` |
+| Linux x86_64 | `MediaStationGo-v0.0.31-linux-amd64.tar.gz` |
+| Linux ARM64 | `MediaStationGo-v0.0.31-linux-arm64.tar.gz` |
+| Windows x86_64 | `MediaStationGo-v0.0.31-windows-amd64.zip` |
+| macOS Intel | `MediaStationGo-v0.0.31-darwin-amd64.tar.gz` |
+| macOS Apple Silicon | `MediaStationGo-v0.0.31-darwin-arm64.tar.gz` |
 
 Linux example:
 
 ```bash
-tar -xzf MediaStationGo-v0.0.30-linux-amd64.tar.gz
-cd MediaStationGo-v0.0.30-linux-amd64
+tar -xzf MediaStationGo-v0.0.31-linux-amd64.tar.gz
+cd MediaStationGo-v0.0.31-linux-amd64
 MEDIASTATION_APP_PORT=18080 ./mediastation-go
 ```
 
 Windows example:
 
 ```powershell
-Expand-Archive .\MediaStationGo-v0.0.30-windows-amd64.zip
-cd .\MediaStationGo-v0.0.30-windows-amd64
+Expand-Archive .\MediaStationGo-v0.0.31-windows-amd64.zip
+cd .\MediaStationGo-v0.0.31-windows-amd64
 $env:MEDIASTATION_APP_PORT = "18080"
 .\mediastation-go.exe
 ```
diff --git a/docker-compose.yml b/docker-compose.yml
index 28ac5ce..aaa466b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -17,7 +17,7 @@
 #
 # 镜像版本：
 #   默认拉取 latest；如需固定版本，创建 .env 并写入：
-#     MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.30
+#     MEDIASTATION_IMAGE_TAG=MediaStationGo-v0.0.31
 #
 # 路径映射总览：
 #   /data      程序数据目录。保存 SQLite 数据库、JWT secret、系统配置等，必须持久化。
diff --git a/internal/service/fileid_other.go b/internal/service/fileid_other.go
index f924880..2f13f28 100644
--- a/internal/service/fileid_other.go
+++ b/internal/service/fileid_other.go
@@ -1,4 +1,4 @@
-//go:build !unix
+//go:build !unix && !windows
 
 package service
 
diff --git a/internal/service/fileid_windows.go b/internal/service/fileid_windows.go
new file mode 100644
index 0000000..d151c36
--- /dev/null
+++ b/internal/service/fileid_windows.go
@@ -0,0 +1,39 @@
+//go:build windows
+
+package service
+
+import (
+	"fmt"
+
+	"golang.org/x/sys/windows"
+)
+
+func fileIdentity(path string) (string, bool) {
+	ptr, err := windows.UTF16PtrFromString(path)
+	if err != nil {
+		return "", false
+	}
+	handle, err := windows.CreateFile(
+		ptr,
+		windows.GENERIC_READ,
+		windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE|windows.FILE_SHARE_DELETE,
+		nil,
+		windows.OPEN_EXISTING,
+		windows.FILE_FLAG_BACKUP_SEMANTICS,
+		0,
+	)
+	if err != nil {
+		return "", false
+	}
+	defer windows.CloseHandle(handle)
+
+	var info windows.ByHandleFileInformation
+	if err := windows.GetFileInformationByHandle(handle, &info); err != nil {
+		return "", false
+	}
+	if info.NumberOfLinks < 2 {
+		return "", false
+	}
+	fileIndex := (uint64(info.FileIndexHigh) << 32) | uint64(info.FileIndexLow)
+	return fmt.Sprintf("%d:%d", info.VolumeSerialNumber, fileIndex), true
+}