diff --git a/package.json b/package.json
index cbd9cfd..7bfe722 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "HugoAura",
-  "version": "0.1.1-pre-III",
+  "version": "0.1.1-pre-IV",
   "description": "Aura for SeewoHugo",
   "main": "app.asar/main.js",
   "dependencies": {},
diff --git a/src/aura/init/main/ipcHandler.js b/src/aura/init/main/ipcHandler.js
index 759aea1..8cdddcc 100755
--- a/src/aura/init/main/ipcHandler.js
+++ b/src/aura/init/main/ipcHandler.js
@@ -74,6 +74,7 @@ const buildIpcMain = (electron) => {
   };
 
   const { applyConfigIpcHandler } = require("./ipcModules/configIpcHandler");
+  const { applyFsIpcHandler } = require("./ipcModules/fsIpcHandler");
   const { applyPlsIpcHandler } = require("./ipcModules/plsIpcHandler");
 
   ipcMain.handle("$aura.base.restartApplication", async () => {
@@ -82,6 +83,7 @@ const buildIpcMain = (electron) => {
   });
 
   applyConfigIpcHandler(ipcMain);
+  applyFsIpcHandler(ipcMain);
   applyPlsIpcHandler(ipcMain);
 };
 
diff --git a/src/aura/init/main/ipcModules/fsIpcHandler.js b/src/aura/init/main/ipcModules/fsIpcHandler.js
new file mode 100644
index 0000000..6d0727a
--- /dev/null
+++ b/src/aura/init/main/ipcModules/fsIpcHandler.js
@@ -0,0 +1,186 @@
+// @ts-check
+
+const __SCOPE = "main";
+
+const { exec } = require("child_process");
+const nodeHttp = require("http");
+const nodeHttps = require("https");
+const fs = require("fs");
+const path = require("path");
+
+const { genRandomHex } = require("../../../utils/crypto");
+
+const composableFunctions = {
+  /**
+   *
+   * @param {string} url
+   * @param {string} targetPath
+   * @param {((arg: DownloadTask) => any)} progressCallback
+   */
+  downloadFile: async (url, targetPath, progressCallback) => {
+    if (!progressCallback) return false;
+    const taskId = genRandomHex();
+
+    /**
+     * @type {DownloadTask}
+     */
+    const failedTemplate = {
+      id: taskId,
+      progress: 100,
+      status: "failed",
+      dlUrl: url,
+      savePath: targetPath,
+      message: "",
+    };
+
+    if (!url || !targetPath) {
+      failedTemplate.message = "Invalid arg";
+      progressCallback(failedTemplate);
+      return false;
+    }
+    if (!fs.existsSync(path.dirname(targetPath))) {
+      failedTemplate.message = "Path not exists";
+      progressCallback(failedTemplate);
+    }
+    const httpModuleIns = url.startsWith("https") ? nodeHttps : nodeHttp;
+
+    global.__HUGO_AURA__.fsTasks?.downloadTasks.set(taskId, {
+      status: "waiting",
+      cancelReq: null,
+    });
+
+    const fsStream = fs.createWriteStream(targetPath);
+
+    const dlReq = httpModuleIns.get(url, (response) => {
+      if (response.statusCode !== 200) {
+        fsStream.close();
+        failedTemplate.message = `Request error: HTTP ${response.statusCode}`;
+        progressCallback(failedTemplate);
+        return false;
+      }
+
+      const contentLength = response.headers["content-length"];
+      // @ts-expect-error
+      const totalBytes = parseInt(contentLength, 10) || 0; // No error handling 😆
+      let curRecvBytes = 0;
+
+      global.__HUGO_AURA__.fsTasks?.downloadTasks.set(taskId, {
+        status: "progressing",
+        cancelReq: () => {
+          dlReq.destroy();
+          fsStream.close();
+          fs.unlink(targetPath, () => {});
+          global.__HUGO_AURA__.fsTasks?.downloadTasks.delete(taskId);
+          progressCallback({
+            id: taskId,
+            progress: 100,
+            curBytes: curRecvBytes,
+            totalBytes: totalBytes,
+            status: "cancelled",
+            dlUrl: url,
+            savePath: targetPath,
+          });
+        },
+      });
+
+      response.on("data", (chunk) => {
+        curRecvBytes += chunk.length;
+        const curProgress =
+          totalBytes > 0 ? (curRecvBytes / totalBytes) * 100 : 0;
+        progressCallback({
+          id: taskId,
+          progress: curProgress.toFixed(2),
+          curBytes: curRecvBytes,
+          totalBytes: totalBytes,
+          status: "progressing",
+          dlUrl: url,
+          savePath: targetPath,
+        });
+      });
+
+      response.pipe(fsStream);
+
+      fsStream.on("finish", () => {
+        fsStream.close();
+        progressCallback({
+          id: taskId,
+          progress: (100).toFixed(2),
+          curBytes: curRecvBytes,
+          totalBytes: totalBytes,
+          status: "done",
+          dlUrl: url,
+          savePath: targetPath,
+        });
+      });
+
+      global.__HUGO_AURA__.fsTasks?.downloadTasks.delete(taskId);
+      return true;
+    });
+
+    dlReq.on("error", (e) => {
+      fsStream.close();
+      fs.unlink(targetPath, () => {});
+      failedTemplate.message =
+        "Request error: Unexpected error while downloading file";
+      failedTemplate.errorObj = e;
+      progressCallback(failedTemplate);
+      global.__HUGO_AURA__.fsTasks?.downloadTasks.delete(taskId);
+      return false;
+    });
+  },
+};
+
+/**
+ *
+ * @param {import("electron").IpcMain} ipcMain
+ */
+const applyFsIpcHandler = (ipcMain) => {
+  const methodBase = "$aura.fs";
+
+  global.__HUGO_AURA__.fsTasks = {
+    downloadTasks: new Map(),
+  };
+
+  ipcMain.handle(
+    `${methodBase}.dl.cancelDownloadTask`,
+    /**
+     *
+     * @param {import("electron").IpcMainInvokeEvent} _evt
+     * @param {{ targetTaskId: string }} arg
+     * @returns {{ success: boolean, error: string | null }}
+     */
+    (_evt, arg) => {
+      if (!arg.targetTaskId) {
+        return {
+          success: false,
+          error: "ARG_INVALID",
+        };
+      }
+
+      if (!global.__HUGO_AURA__.fsTasks?.downloadTasks.has(arg.targetTaskId)) {
+        return {
+          success: false,
+          error: "TASK_ID_NOT_FOUND",
+        };
+      }
+
+      const taskObj = global.__HUGO_AURA__.fsTasks.downloadTasks.get(
+        arg.targetTaskId
+      );
+      if (!taskObj?.cancelReq) {
+        return {
+          success: false,
+          error: "TASK_NOT_STARTED",
+        };
+      }
+
+      taskObj.cancelReq();
+      return {
+        success: true,
+        error: null,
+      };
+    }
+  );
+};
+
+module.exports = { fsComposables: composableFunctions, applyFsIpcHandler };
diff --git a/src/aura/init/main/ipcModules/plsIpcHandler.js b/src/aura/init/main/ipcModules/plsIpcHandler.js
index 20cbb05..cffd88b 100755
--- a/src/aura/init/main/ipcModules/plsIpcHandler.js
+++ b/src/aura/init/main/ipcModules/plsIpcHandler.js
@@ -5,6 +5,8 @@ const __SCOPE = "main";
 const { exec } = require("child_process");
 const fs = require("fs");
 const path = require("path");
+const nodeHttps = require("https");
+const { fsComposables } = require("./fsIpcHandler");
 
 const functions = {
   querySvcDetail: (
@@ -47,8 +49,9 @@ const functions = {
    * @returns {Promise<{ success: boolean, errorObj?: Error }>}
    */
   execCommand: (logHeader, binPath, command) => {
+    const processedPath = binPath.includes(" ") ? `"${binPath}"` : binPath;
     return new Promise((resolve) => {
-      exec(`"${binPath}" ${command}`, (error, stdout, stderr) => {
+      exec(`${processedPath} ${command}`, (error, stdout, stderr) => {
         if (error) {
           console.error(`${logHeader} Failed to execute command:`, error);
           resolve({ success: false, errorObj: error });
@@ -58,6 +61,103 @@ const functions = {
       });
     });
   },
+
+  /**
+   *
+   * @param {"stable" | "alpha"} channel
+   * @param {(arg: DownloadTask) => any} callbackFn
+   * @param {string} binPath
+   */
+  handlePLSDownload: async (channel, callbackFn, binPath) => {
+    // TODO: Channel selection
+    const apiInfo = global.__HUGO_AURA_API__;
+    let plsVersionInfo = {};
+
+    const getVerPromise = new Promise((resolve) => {
+      // ↓ 目前 channel param 没有什么用处
+      nodeHttps
+        .get(
+          `${apiInfo.baseUrl}${apiInfo.plsUpdate}?channel=${channel}`,
+          (rep) => {
+            let dataChunk = "";
+            rep.on("data", (chunk) => {
+              dataChunk += chunk;
+            });
+
+            rep.on("end", () => {
+              resolve({
+                success: true,
+                data: dataChunk,
+              });
+            });
+          }
+        )
+        .on("error", (e) => {
+          resolve({
+            success: false,
+            data: null,
+            errorObj: e,
+          });
+        });
+    });
+
+    const rawResInfo = await getVerPromise;
+    if (!rawResInfo.success) {
+      callbackFn({
+        id: "",
+        progress: 0,
+        status: "failed",
+        dlUrl: null,
+        savePath: null,
+        message: "未能获取 PLS 版本信息",
+        errorObj: rawResInfo.errorObj ? rawResInfo.errorObj : null,
+      });
+      return false;
+    }
+
+    try {
+      plsVersionInfo = JSON.parse(rawResInfo.data);
+    } catch (e) {
+      callbackFn({
+        id: "",
+        progress: 0,
+        status: "failed",
+        dlUrl: null,
+        savePath: null,
+        message: "PLS 版本信息解析失败",
+        errorObj: e,
+      });
+      console.error(
+        "[HugoAura / IPC / PLS] Error querying PLS version info:",
+        e
+      );
+      return false;
+    }
+
+    let deviceArch = process.env.PROCESSOR_ARCHITEW6432
+      ? process.env.PROCESSOR_ARCHITEW6432
+      : process.env.PROCESSOR_ARCHITECTURE;
+    // @ts-expect-error
+    deviceArch = deviceArch.toLowerCase();
+
+    if (!Object.keys(plsVersionInfo.data.downloadUrl).includes(deviceArch)) {
+      callbackFn({
+        id: "",
+        progress: 0,
+        status: "failed",
+        dlUrl: null,
+        savePath: null,
+        message: `处理器架构识别失败, 检测到的架构: ${deviceArch}`,
+      });
+      return false;
+    }
+
+    fsComposables.downloadFile(
+      plsVersionInfo.data.downloadUrl[deviceArch],
+      binPath,
+      callbackFn
+    );
+  },
 };
 
 /**
@@ -67,8 +167,8 @@ const functions = {
 const applyPlsIpcHandler = (ipcMain) => {
   const methodBase = "$aura.pls";
 
-  const PLS_INSTALL_DIR = path.join("C:\\Program Files", "HugoAura PLS");
-  const PLS_BIN_PATH = path.join(PLS_INSTALL_DIR, "bin", "HugoAura-PLS.exe");
+  const PLS_INSTALL_DIR = path.join("C:\\Program Files", "HugoAura PLS", "bin");
+  const PLS_BIN_PATH = path.join(PLS_INSTALL_DIR, "HugoAura-PLS.exe");
   const PLS_SVC_NAME = "HugoAuraPLS";
 
   const isPlsDetached = process.argv.includes("--pls-detach");
@@ -106,6 +206,48 @@ const applyPlsIpcHandler = (ipcMain) => {
     }
   );
 
+  ipcMain.handle(
+    `${methodBase}.ensurePlsInstallDir`,
+    /**
+     *
+     * @param {import("electron").IpcMainInvokeEvent} _event
+     * @param {any} _arg
+     * @returns {{ success: boolean; data: { alreadyExists: boolean; createdDir: string; }; error?: Error }}
+     */
+    (_event, _arg) => {
+      const alreadyExists = fs.existsSync(PLS_INSTALL_DIR);
+      if (alreadyExists) {
+        return {
+          success: true,
+          data: {
+            alreadyExists: true,
+            createdDir: PLS_INSTALL_DIR,
+          },
+        };
+      }
+
+      try {
+        fs.mkdirSync(PLS_INSTALL_DIR);
+        return {
+          success: true,
+          data: {
+            alreadyExists: false,
+            createdDir: PLS_INSTALL_DIR,
+          },
+        };
+      } catch (error) {
+        return {
+          success: false,
+          data: {
+            alreadyExists: false,
+            createdDir: PLS_INSTALL_DIR,
+          },
+          error: error,
+        };
+      }
+    }
+  );
+
   ipcMain.handle(
     `${methodBase}.getPlsStats`,
     /**
@@ -294,7 +436,7 @@ const applyPlsIpcHandler = (ipcMain) => {
           return await functions.execCommand(
             logHeader,
             PLS_BIN_PATH,
-            "install"
+            "--startup auto install"
           );
         case "rmSvc":
           return await functions.execCommand(logHeader, PLS_BIN_PATH, "remove");
@@ -302,12 +444,59 @@ const applyPlsIpcHandler = (ipcMain) => {
           return await functions.execCommand(logHeader, PLS_BIN_PATH, "start");
         case "stopSvc":
           return await functions.execCommand(logHeader, PLS_BIN_PATH, "stop");
+        case "rmBin":
+          const unlinkPromise = new Promise((resolve) => {
+            fs.unlink(PLS_BIN_PATH, (error) => {
+              if (error) {
+                resolve({
+                  success: false,
+                  errorObj: error,
+                });
+                return false;
+              }
+
+              resolve({
+                success: true,
+                errorObj: null,
+              });
+              return true;
+            });
+          });
+
+          const unlinkRet = await unlinkPromise;
+
+          return unlinkRet;
         default:
           return { success: false, errorObj: new Error("Method not found") };
       }
     }
   );
 
+  ipcMain.handle(
+    `${methodBase}.downloadPls`,
+    /**
+     *
+     * @param {import("electron").IpcMainInvokeEvent} _evt
+     * @param {{channel?: "stable" | "alpha", reportTo?: import("../../../types/main/core").WindowName}} arg
+     * @returns {void}
+     */
+    (_evt, arg) => {
+      const channel = arg.channel ? arg.channel : "stable";
+      const reportWin = arg.reportTo ? arg.reportTo : "assistant";
+      functions.handlePLSDownload(
+        channel,
+        (status) => {
+          ipcMain.send(
+            reportWin,
+            `${methodBase}.post.reportPlsDownloadStatus`,
+            status
+          );
+        },
+        PLS_BIN_PATH
+      );
+    }
+  );
+
   ipcMain.handle(
     `${methodBase}.retryPlsConnect`,
     /**
diff --git a/src/aura/types/main/ipc/fs.d.ts b/src/aura/types/main/ipc/fs.d.ts
new file mode 100644
index 0000000..ff509d1
--- /dev/null
+++ b/src/aura/types/main/ipc/fs.d.ts
@@ -0,0 +1,21 @@
+type DownloadTaskID = string;
+type DownloadTaskStatus = "waiting" | "progressing" | "done" | "failed" | "cancelled";
+
+interface DownloadTask {
+  id: DownloadTaskID;
+  progress: float;
+  curBytes?: number;
+  totalBytes?: number;
+  status: DownloadTaskStatus;
+  dlUrl: string | null;
+  savePath: string | null;
+  message?: string;
+  errorObj?: Error;
+}
+
+interface FSTasks {
+  downloadTasks: Map<
+    DownloadTaskID,
+    { status: DownloadTaskStatus; cancelReq: any }
+  >;
+}
diff --git a/src/aura/types/shared/global.d.ts b/src/aura/types/shared/global.d.ts
index f4f2be4..8ef256f 100755
--- a/src/aura/types/shared/global.d.ts
+++ b/src/aura/types/shared/global.d.ts
@@ -11,6 +11,7 @@ type RendererProcessOnlyVal<T> = T;
 interface GlobalHugoAuraInfo {
   central?: MainProcessOnlyVal<(...args: any) => any>;
   configInit: boolean;
+  fsTasks?: MainProcessOnlyVal<FSTasks>;
   hookedWindows?: MainProcessOnlyVal<HookedWindowsMap>;
   ipcInit?: MainProcessOnlyVal<boolean>;
   plsRules?: Record<any, any> | null;
@@ -22,12 +23,19 @@ interface GlobalHugoAuraInfo {
   version: RendererProcessOnlyVal<string>;
 }
 
+interface GlobalHugoAuraApiInfo {
+  baseUrl: string;
+  plsUpdate: string;
+  auraUpdate: string;
+}
+
 type GlobalHugoAuraConfig = AuraConfig;
 
 declare global {
   var ipcRenderer: RendererProcessOnlyVal<IpcRenderer>;
   var _ACCEPT_DATA: any;
   var __HUGO_AURA__: GlobalHugoAuraInfo;
+  var __HUGO_AURA_API__: GlobalHugoAuraApiInfo;
   var __HUGO_AURA_CONFIG__: GlobalHugoAuraConfig;
   var __HUGO_AURA_CONFIG_MGR__: ConfigManager;
   var __HUGO_AURA_EVENT_BUS__: EventBus;
diff --git a/src/aura/types/shared/pls/status.d.ts b/src/aura/types/shared/pls/status.d.ts
index 0227676..113d2d8 100755
--- a/src/aura/types/shared/pls/status.d.ts
+++ b/src/aura/types/shared/pls/status.d.ts
@@ -12,4 +12,4 @@ interface PLSStatus {
 
 type PLSLifecycleType = "isDetached" | "isSvcInstalled" | "isSvcStart";
 
-type PLSLifecycleControlType = "instSvc" | "rmSvc" | "startSvc" | "stopSvc";
+type PLSLifecycleControlType = "instSvc" | "rmSvc" | "startSvc" | "stopSvc" | "rmBin" | "dlBin";
diff --git a/src/aura/ui/composables/plsConfigManager.js b/src/aura/ui/composables/plsConfigManager.js
index 2154c75..6555300 100755
--- a/src/aura/ui/composables/plsConfigManager.js
+++ b/src/aura/ui/composables/plsConfigManager.js
@@ -28,18 +28,7 @@ const updatePlsRulesFromLocal = async () => {
   return plsRules;
 };
 
-/**
- *
- * @returns {string}
- */
-const genRandomHex = () => {
-  let result = "";
-  for (let i = 0; i < 8; i++) {
-    const randomNum = Math.floor(Math.random() * 0x10000);
-    result += randomNum.toString(16).padStart(4, "0");
-  }
-  return result;
-};
+const { genRandomHex } = require("../../utils/crypto");
 
 /**
  *
diff --git a/src/aura/ui/pages/configSubPages/behaviourCtrl/plsStatus.js b/src/aura/ui/pages/configSubPages/behaviourCtrl/plsStatus.js
index ff13849..4720b94 100755
--- a/src/aura/ui/pages/configSubPages/behaviourCtrl/plsStatus.js
+++ b/src/aura/ui/pages/configSubPages/behaviourCtrl/plsStatus.js
@@ -96,11 +96,19 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
             };
             break;
           case "Download":
+            btnEl.onclick = async () => {
+              global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.downloadPLSBin();
+            };
             break;
 
           // ↓ 这边的确可以把这些全都合并到一个可复用 fn 里去, 但没必要
+          // 如果后续要引入错误视觉反馈, 合并到单个 fn 反而会增加实现复杂度
           case "Install":
             btnEl.onclick = async () => {
+              global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateOperationBtnStatus(
+                "Install",
+                true
+              );
               global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
                 "info",
                 "正在请求安装",
@@ -137,44 +145,116 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
             };
             break;
           case "Uninstall":
-            btnEl.onclick = async () => {
-              global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
-                "info",
-                "正在请求卸载",
-                null,
-                false,
-                false,
-                null
-              );
-              const ret = await ipcRenderer.invoke(
-                `${IPC_METHOD_BASE}.plsLifecycleControl`,
-                { target: "rmSvc" }
-              );
-              if (ret.success) {
-                lifecycleStatus.svcInstalled = false;
-                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
-                  "success",
-                  "服务卸载成功",
-                  null,
-                  true,
-                  true,
-                  2000
+            if (btnContent === "删除内核") {
+              btnEl.onclick = async () => {
+                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateOperationBtnStatus(
+                  "Uninstall",
+                  true
                 );
-              } else {
                 global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
-                  "error",
-                  "服务卸载失败",
-                  "<p>检查日志以获取详细信息</p>",
-                  true,
+                  "warning",
+                  "正在删除内核",
+                  null,
+                  false,
                   false,
                   null
                 );
-              }
-              global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateStatusContent();
-            };
+                const ret = await ipcRenderer.invoke(
+                  `${IPC_METHOD_BASE}.plsLifecycleControl`,
+                  { target: "rmBin" }
+                );
+                if (ret.success) {
+                  lifecycleStatus.installed = false;
+                  lifecycleStatus.svcInstalled = false;
+                  global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
+                    "success",
+                    "内核已删除",
+                    null,
+                    true,
+                    true,
+                    2000
+                  );
+                } else {
+                  global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
+                    "error",
+                    "内核删除失败",
+                    "<p>检查日志以获取详细信息</p>",
+                    true,
+                    false,
+                    null
+                  );
+                }
+                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateStatusContent();
+              };
+            } else {
+              btnEl.onclick = async () => {
+                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateOperationBtnStatus(
+                  "Uninstall",
+                  true
+                );
+                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
+                  "info",
+                  lifecycleStatus.svcRunning
+                    ? "正在停止服务并卸载"
+                    : "正在请求卸载",
+                  null,
+                  false,
+                  false,
+                  null
+                );
+                if (lifecycleStatus.svcRunning) {
+                  const stopRet = await ipcRenderer.invoke(
+                    `${IPC_METHOD_BASE}.plsLifecycleControl`,
+                    { target: "stopSvc" }
+                  );
+                  if (!stopRet.success) {
+                    global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
+                      "error",
+                      "服务卸载失败: 无法停止服务",
+                      "<p>检查日志以获取详细信息</p><p>您可以尝试手动停止 PLS 服务</p>",
+                      true,
+                      false,
+                      null
+                    );
+                  } else {
+                    lifecycleStatus.svcRunning = false;
+                  }
+                }
+                const ret = await ipcRenderer.invoke(
+                  `${IPC_METHOD_BASE}.plsLifecycleControl`,
+                  { target: "rmSvc" }
+                );
+                if (ret.success) {
+                  lifecycleStatus.svcInstalled = false;
+                  global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
+                    "success",
+                    "服务卸载成功",
+                    null,
+                    true,
+                    true,
+                    2000
+                  );
+                } else {
+                  global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
+                    "error",
+                    "服务卸载失败",
+                    "<p>检查日志以获取详细信息</p>",
+                    true,
+                    false,
+                    null
+                  );
+                }
+                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateStatusContent();
+              };
+            }
+
             break;
           case "Start":
             btnEl.onclick = async () => {
+              global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateOperationBtnStatus(
+                "Start",
+                true
+              );
               global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
                 "info",
                 "正在请求启动",
@@ -202,6 +282,7 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
                 await ipcRenderer.invoke(`${IPC_METHOD_BASE}.retryPlsConnect`);
                 global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateStatusContent();
               } else {
+                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateStatusContent();
                 global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
                   "error",
                   "PLS 启动失败",
@@ -215,6 +296,10 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
             break;
           case "Stop":
             btnEl.onclick = async () => {
+              global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateOperationBtnStatus(
+                "Stop",
+                true
+              );
               global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
                 "info",
                 "正在请求停止",
@@ -229,7 +314,6 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
               );
               if (ret.success) {
                 lifecycleStatus.svcRunning = false;
-                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateStatusContent();
                 global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
                   "success",
                   "PLS 已停止",
@@ -247,6 +331,7 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
                   false,
                   null
                 );
+                global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateStatusContent();
               }
             };
             break;
@@ -267,17 +352,26 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
           if (!lifecycleStatus.svcInstalled) {
             updateStatusEl(acIdInst, atIdInst, "WARNING", "已下载, 服务未安装");
             GLOBAL_FUNCTIONS.updateOperationBtnStatus("Install", false);
-            GLOBAL_FUNCTIONS.updateOperationBtnStatus("Uninstall", true);
+            GLOBAL_FUNCTIONS.updateOperationBtnStatus(
+              "Uninstall",
+              false,
+              "删除内核"
+            );
             GLOBAL_FUNCTIONS.updateOperationBtnStatus("Start", true);
             GLOBAL_FUNCTIONS.updateOperationBtnStatus("Stop", true);
           } else {
             updateStatusEl(acIdInst, atIdInst, "SUCCESS", "已安装");
             GLOBAL_FUNCTIONS.updateOperationBtnStatus("Install", true);
-            GLOBAL_FUNCTIONS.updateOperationBtnStatus("Uninstall", false);
+            GLOBAL_FUNCTIONS.updateOperationBtnStatus(
+              "Uninstall",
+              false,
+              "卸载服务"
+            );
           }
           break;
         case false:
           updateStatusEl(acIdInst, atIdInst, "PENDING", "未下载");
+          GLOBAL_FUNCTIONS.updateOperationBtnStatus("Download", false);
           GLOBAL_FUNCTIONS.updateOperationBtnStatus("Install", true);
           GLOBAL_FUNCTIONS.updateOperationBtnStatus("Uninstall", true);
           GLOBAL_FUNCTIONS.updateOperationBtnStatus("Start", true);
@@ -343,6 +437,14 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
         lifecycleStatus.installed = true;
       } else {
         lifecycleStatus.installed = false;
+        global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
+          "error",
+          "请下载 PLS 内核以继续",
+          null,
+          true,
+          true,
+          3000
+        );
         global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateStatusContent();
         return;
       }
@@ -410,8 +512,93 @@ if (!global.__HUGO_AURA_UI_REACTIVES__.subConfig)
         );
       } else if (result.success && result.status === "Already") {
         updateOperationBtnStatus("Refresh", false, "刷新状态");
+        global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus.updateToast(
+          "success",
+          "更新成功",
+          null,
+          true,
+          true,
+          3000
+        );
       }
     },
+
+    downloadPLSBin: async () => {
+      const GLOBAL_FUNCTIONS =
+        global.__HUGO_AURA_UI_FUNCTIONS__.subConfig.plsStatus;
+      GLOBAL_FUNCTIONS.updateOperationBtnStatus("Download", true, "正在检查");
+      GLOBAL_FUNCTIONS.updateOperationBtnStatus("Refresh", true);
+      const CUR_CHANNEL = `${IPC_METHOD_BASE}.post.reportPlsDownloadStatus`;
+      await ipcRenderer.invoke(`${IPC_METHOD_BASE}.ensurePlsInstallDir`);
+      GLOBAL_FUNCTIONS.updateToast(
+        "info",
+        "准备开始下载...",
+        null,
+        true,
+        true,
+        2000
+      );
+      GLOBAL_FUNCTIONS.updateOperationBtnStatus("Download", true, "等待下载");
+
+      const callbackFn = (_evt, info) => {
+        switch (info.status) {
+          case "failed":
+            GLOBAL_FUNCTIONS.updateToast(
+              "error",
+              "下载失败",
+              `<p>${
+                info.message ? info.message : "检查日志以获取错误信息"
+              }</p>`,
+              true,
+              true,
+              5000
+            );
+            ipcRenderer.off(CUR_CHANNEL, callbackFn);
+            GLOBAL_FUNCTIONS.updateOperationBtnStatus("Refresh", false);
+            break;
+          case "done":
+            GLOBAL_FUNCTIONS.updateToast(
+              "success",
+              "下载成功",
+              null,
+              true,
+              true,
+              2500
+            );
+            ipcRenderer.off(CUR_CHANNEL, callbackFn);
+            GLOBAL_FUNCTIONS.updateOperationBtnStatus("Refresh", false);
+            GLOBAL_FUNCTIONS.updateOperationBtnStatus(
+              "Download",
+              true,
+              "下载内核"
+            );
+            lifecycleStatus.installed = true;
+            GLOBAL_FUNCTIONS.updateStatusContent();
+            break;
+          case "waiting":
+            GLOBAL_FUNCTIONS.updateOperationBtnStatus(
+              "Download",
+              true,
+              "等待中..."
+            );
+            break;
+          case "progressing":
+            GLOBAL_FUNCTIONS.updateOperationBtnStatus(
+              "Download",
+              true,
+              `下载 ${Math.round(info.progress)}%`
+            );
+            break;
+        }
+      };
+
+      ipcRenderer.on(CUR_CHANNEL, callbackFn);
+
+      ipcRenderer.invoke(`$aura.pls.downloadPls`, {
+        channel: "stable",
+        reportTo: "assistant",
+      });
+    },
   };
 
   const GLOBAL_FUNCTIONS =
diff --git a/src/aura/ui/pages/configSubPages/behaviourCtrl/settings/basic.js b/src/aura/ui/pages/configSubPages/behaviourCtrl/settings/basic.js
index 257ae6f..f0ed0f6 100755
--- a/src/aura/ui/pages/configSubPages/behaviourCtrl/settings/basic.js
+++ b/src/aura/ui/pages/configSubPages/behaviourCtrl/settings/basic.js
@@ -83,7 +83,7 @@ const basicSettings = [
         restartPLS: true,
         tip: true,
         tipTitle:
-          '路径相对于 "%USERPROFILE%\\Documents\\HugoAura\\Aura-PLS\\", 使用 "/" 作为路径符',
+          '路径相对于 "%PROGRAMDATA%\\HugoAura\\Aura-PLS\\", 使用 "/" 作为路径符',
         associateVal: null,
         auraIf: () => true,
         defaultValue: "",
@@ -118,7 +118,7 @@ const basicSettings = [
         restartPLS: true,
         tip: true,
         tipTitle:
-          '路径相对于 "%USERPROFILE%\\Documents\\HugoAura\\Aura-PLS\\", 使用 "/" 作为路径符',
+          '路径相对于 "%PROGRAMDATA%\\HugoAura\\Aura-PLS\\", 使用 "/" 作为路径符',
         warning: true,
         warningContent: "请使用 PEM 格式的密钥",
         associateVal: null,
diff --git a/src/aura/utils/crypto.js b/src/aura/utils/crypto.js
new file mode 100644
index 0000000..0779e55
--- /dev/null
+++ b/src/aura/utils/crypto.js
@@ -0,0 +1,14 @@
+/**
+ *
+ * @returns {string}
+ */
+const genRandomHex = () => {
+  let result = "";
+  for (let i = 0; i < 8; i++) {
+    const randomNum = Math.floor(Math.random() * 0x10000);
+    result += randomNum.toString(16).padStart(4, "0");
+  }
+  return result;
+};
+
+module.exports = { genRandomHex };
diff --git a/src/core/hook.js b/src/core/hook.js
index a4c450d..2bde0ae 100755
--- a/src/core/hook.js
+++ b/src/core/hook.js
@@ -16,6 +16,16 @@ if (!global.__HUGO_AURA__) {
   global.__HUGO_AURA__ = __HUGO_AURA__;
 }
 
+if (!global.__HUGO_AURA_API__) {
+  /** @type {import("../aura/types/shared/global").GlobalHugoAuraApiInfo} */
+  const __HUGO_AURA_API__ = {
+    baseUrl: "https://api-aura.xwx.li",
+    plsUpdate: "/api/v1/getPLSLatestVersion",
+    auraUpdate: "/api/v1/getAuraLatestVersion",
+  };
+  global.__HUGO_AURA_API__ = __HUGO_AURA_API__;
+}
+
 if (!global.__HUGO_AURA_CONFIG__) {
   global.__HUGO_AURA_CONFIG__ = {};
 }
@@ -134,7 +144,8 @@ const launcher = ({ central, windowName, config }) => {
   configManager.ensureConfigExists();
   const loadedConfig = configManager.loadConfig();
   if (!global.__HUGO_AURA__.configInit) global.__HUGO_AURA__.configInit = true;
-  if (!global.__HUGO_AURA_CONFIG_MGR__) global.__HUGO_AURA_CONFIG_MGR__ = configManager;
+  if (!global.__HUGO_AURA_CONFIG_MGR__)
+    global.__HUGO_AURA_CONFIG_MGR__ = configManager;
 
   global.__HUGO_AURA_CONFIG__ = loadedConfig;
 
diff --git a/src/core/preload.js b/src/core/preload.js
index d06f97e..3b1766a 100755
--- a/src/core/preload.js
+++ b/src/core/preload.js
@@ -1,6 +1,6 @@
 // @ts-check
 
-const __AURA_VERSION__ = "0.1.1-pre-III";
+const __AURA_VERSION__ = "0.1.1-pre-IV";
 
 (() => {
   if (require.main) return; // 如果只是导入 Aura Version, 不运行闭包逻辑