diff --git a/src/components/dialogs/ProfileDialog.tsx b/src/components/dialogs/ProfileDialog.tsx
index fc2a028..b59615b 100644
--- a/src/components/dialogs/ProfileDialog.tsx
+++ b/src/components/dialogs/ProfileDialog.tsx
@@ -73,8 +73,19 @@ export function ProfileDialog({ open, onClose }: Props) {
       system: selectedData.sys.filter(e => !e.enabled).map(e => e.path),
       user: selectedData.user.filter(e => !e.enabled).map(e => e.path),
     });
-    await useAppStore.getState().savePaths();
-    onClose();
+    const result = await useAppStore.getState().savePaths();
+    if (result.kind === 'success') {
+      onClose();
+    } else if (result.kind === 'warning') {
+      const { ask } = await import('@tauri-apps/plugin-dialog');
+      const confirmed = await ask(t('status.saveWarningLongPaths'), { title: t('dialog.backupTitle'), kind: 'warning' });
+      if (confirmed) {
+        const forceResult = await useAppStore.getState().savePaths(true);
+        if (forceResult.kind === 'success') {
+          onClose();
+        }
+      }
+    }
   };
 
   const handleDelete = async (name: string) => {
diff --git a/src/hooks/use-app-actions.ts b/src/hooks/use-app-actions.ts
index d19f53f..5b344e2 100644
--- a/src/hooks/use-app-actions.ts
+++ b/src/hooks/use-app-actions.ts
@@ -118,8 +118,8 @@ export function useAppActions(activeTab: TabId, dialogs: DialogState) {
   }, []);
 
   const handleSave = useCallback(async () => {
-    const saved = await useAppStore.getState().savePaths();
-    if (!saved && !useAppStore.getState().isSaving) {
+    const result = await useAppStore.getState().savePaths();
+    if (result.kind === 'warning') {
       // 长度超限，需要用户确认
       const { ask } = await import('@tauri-apps/plugin-dialog');
       const confirmed = await ask(i18n.t('status.saveWarningLongPaths'), { title: i18n.t('dialog.backupTitle'), kind: 'warning' });
diff --git a/src/store/app-store.ts b/src/store/app-store.ts
index 6797af7..3e029b9 100644
--- a/src/store/app-store.ts
+++ b/src/store/app-store.ts
@@ -8,6 +8,13 @@ import appConfig from '@/config/default.json';
 
 export type TabId = 'system' | 'user' | 'merged';
 
+export type SaveResult =
+  | { kind: 'success' }
+  | { kind: 'warning'; reason: 'lengthExceeded' }
+  | { kind: 'failure'; message: string }
+  | { kind: 'partial'; message: string }
+  | { kind: 'blocked' };
+
 interface AppState {
   sysPaths: PathEntry[];
   userPaths: PathEntry[];
@@ -45,7 +52,7 @@ interface AppState {
   redo: () => void;
 
   loadPaths: () => Promise<void>;
-  savePaths: (force?: boolean) => Promise<boolean>;
+  savePaths: (force?: boolean) => Promise<SaveResult>;
   initialize: () => Promise<void>;
 
 }
@@ -324,7 +331,7 @@ export const useAppStore = create<AppState>((set, get) => {
 
   savePaths: async (force?: boolean) => {
     const state = get();
-    if (state.isSaving) return false;
+    if (state.isSaving) return { kind: 'blocked' };
     set({ isSaving: true, statusMessage: i18n.t('status.saving') });
 
     // 只保存 enabled 的路径到注册表
@@ -337,7 +344,7 @@ export const useAppStore = create<AppState>((set, get) => {
     const { maxSystemLength, maxUserLength, maxCombinedLength } = appConfig.path;
     if (!force && (sysJoined.length > maxSystemLength || userJoined.length > maxUserLength || (sysJoined + userJoined).length > maxCombinedLength)) {
       set({ isSaving: false, statusMessage: i18n.t('status.saveWarningLongPaths') });
-      return false;
+      return { kind: 'warning', reason: 'lengthExceeded' };
     }
 
     // 备份当前注册表（保存前备份旧值，失败仅警告不中断）
@@ -359,14 +366,24 @@ export const useAppStore = create<AppState>((set, get) => {
       set({ isModified: false, isSaving: false,
         statusMessage: backupFailed ? i18n.t('status.saved_without_backup') : i18n.t('status.saved'),
         _savedSys: savedSys, _savedUser: savedUser });
-      return true;
+      return { kind: 'success' };
     } else {
       const sysErr = (!sysOk && sysResult.status === 'rejected') ? String(sysResult.reason) : '';
       const usrErr = (!userOk && userResult.status === 'rejected') ? String(userResult.reason) : '';
       const parts = [sysErr, usrErr].filter(Boolean);
-      const msg = sysOk ? '用户 PATH 保存失败' : userOk ? '系统 PATH 保存失败' : `保存失败: ${parts.join('; ')}`;
-      set({ isSaving: false, statusMessage: msg });
-      return false;
+      
+      const msg = sysOk ? `用户 PATH 保存失败: ${usrErr}` : userOk ? `系统 PATH 保存失败: ${sysErr}` : `保存失败: ${parts.join('; ')}`;
+      
+      if (sysOk || userOk) {
+        // partial success
+        set({ isSaving: false });
+        await get().loadPaths(); // reload to avoid state drift
+        set({ statusMessage: msg }); // restore the error message overwritten by loadPaths
+        return { kind: 'partial', message: msg };
+      } else {
+        set({ isSaving: false, statusMessage: msg });
+        return { kind: 'failure', message: msg };
+      }
     }
   },
 
diff --git a/tests/unit/app-store.test.ts b/tests/unit/app-store.test.ts
index 6385773..36bcb92 100644
--- a/tests/unit/app-store.test.ts
+++ b/tests/unit/app-store.test.ts
@@ -239,19 +239,26 @@ describe('savePaths', () => {
 
   it('保存成功', async () => {
     mockedInvoke.mockResolvedValue(undefined);
-    await useAppStore.getState().savePaths();
+    const result = await useAppStore.getState().savePaths();
+    expect(result).toEqual({ kind: 'success' });
     const s = useAppStore.getState();
     expect(s.isSaving).toBe(false);
     expect(s.isModified).toBe(false);
     expect(s.statusMessage).toBe('保存成功');
   });
 
-  it('部分失败时报告具体 hive', async () => {
+  it('部分失败时报告具体 hive 并回读', async () => {
     mockedInvoke
       .mockResolvedValueOnce(undefined)       // backup_registry
       .mockResolvedValueOnce(undefined)       // save_system_paths
-      .mockRejectedValueOnce('权限不足');     // save_user_paths
-    await useAppStore.getState().savePaths();
+      .mockRejectedValueOnce('权限不足')      // save_user_paths
+      // 以下为 partial 触发的 loadPaths 调用
+      .mockResolvedValueOnce(['A'])           // load_system_paths
+      .mockResolvedValueOnce(['B'])           // load_user_paths
+      .mockResolvedValueOnce([[], []]);       // load_disabled_state
+
+    const result = await useAppStore.getState().savePaths();
+    expect(result.kind).toBe('partial');
     const s = useAppStore.getState();
     expect(s.isSaving).toBe(false);
     expect(s.statusMessage).toContain('用户 PATH 保存失败');
@@ -268,8 +275,8 @@ describe('savePaths', () => {
     // 第二次调用应被 isSaving 守卫拦截（此时 isSaving=true）
     const r2 = useAppStore.getState().savePaths();
 
-    // 第二次调用同步返回 false（被守卫拦截）
-    await expect(r2).resolves.toBe(false);
+    // 第二次调用同步返回 blocked（被守卫拦截）
+    await expect(r2).resolves.toEqual({ kind: 'blocked' });
 
     // 放行第一次调用的所有 invoke
     resolveAll!(undefined);
diff --git a/tests/unit/import-export.test.ts b/tests/unit/import-export.test.ts
index 4c96a28..aec495c 100644
--- a/tests/unit/import-export.test.ts
+++ b/tests/unit/import-export.test.ts
@@ -24,7 +24,7 @@ describe('exportToJson', () => {
   it('导出结构化 JSON', () => {
     const json = exportToJson(sampleData);
     const parsed = JSON.parse(json);
-    expect(parsed.version).toBe('5.0.0');
+    expect(parsed.version).toBe('5.1.0');
     expect(parsed.timestamp).toBeDefined();
     expect(parsed.system.map((e: { path: string }) => e.path)).toEqual(sampleData.system.map(e => e.path));
     expect(parsed.user.map((e: { path: string }) => e.path)).toEqual(sampleData.user.map(e => e.path));
diff --git a/tests/unit/use-app-actions.test.tsx b/tests/unit/use-app-actions.test.tsx
index c349dab..a779123 100644
--- a/tests/unit/use-app-actions.test.tsx
+++ b/tests/unit/use-app-actions.test.tsx
@@ -208,21 +208,22 @@ describe('useAppActions', () => {
 
   it('handleSave 正常保存', async () => {
     mockedInvoke.mockResolvedValue(undefined);
+    vi.spyOn(useAppStore.getState(), 'savePaths').mockResolvedValue({ kind: 'success' });
     const { useAppActions } = await import('@/hooks/use-app-actions');
     const { result } = renderHook(() => useAppActions('system', dialogs));
     await act(async () => { await result.current.handleSave(); });
-    // invoke 被调用（backup + save_system + save_user + broadcast）
-    expect(mockedInvoke).toHaveBeenCalled();
+    // savePaths is called
+    expect(useAppStore.getState().savePaths).toHaveBeenCalled();
   });
 
   it('handleSave 超长确认后强制保存', async () => {
-    // 第一次 savePaths 返回 false（超长）
-    // 第二次（force=true）返回 true
+    // 第一次 savePaths 返回 warning（超长）
+    // 第二次（force=true）返回 success
     let callCount = 0;
     vi.spyOn(useAppStore.getState(), 'savePaths').mockImplementation(async (force?: boolean) => {
       callCount++;
-      if (!force) return false; // 第一次：超长警告
-      return true; // 第二次：强制保存成功
+      if (!force) return { kind: 'warning', reason: 'lengthExceeded' }; // 第一次：超长警告
+      return { kind: 'success' }; // 第二次：强制保存成功
     });
     const { useAppActions } = await import('@/hooks/use-app-actions');
     const { result } = renderHook(() => useAppActions('system', dialogs));
@@ -230,4 +231,17 @@ describe('useAppActions', () => {
     expect(callCount).toBe(2);
     expect(mockAsk).toHaveBeenCalled();
   });
+
+  it('handleSave 普通失败不弹确认框', async () => {
+    let callCount = 0;
+    vi.spyOn(useAppStore.getState(), 'savePaths').mockImplementation(async () => {
+      callCount++;
+      return { kind: 'failure', message: '权限不足' };
+    });
+    const { useAppActions } = await import('@/hooks/use-app-actions');
+    const { result } = renderHook(() => useAppActions('system', dialogs));
+    await act(async () => { await result.current.handleSave(); });
+    expect(callCount).toBe(1); // 仅调用一次，不重试
+    expect(mockAsk).not.toHaveBeenCalled();
+  });
 });