diff --git a/frontend/src/app/tasks/page.tsx b/frontend/src/app/tasks/page.tsx
index 55e962b8..59a942d6 100644
--- a/frontend/src/app/tasks/page.tsx
+++ b/frontend/src/app/tasks/page.tsx
@@ -57,7 +57,6 @@ import {
   Rows3,
   Search,
   ShoppingCart,
-  Star,
   Tag,
   Trash2,
   UserPlus,
@@ -3924,9 +3923,15 @@ function TasksPageContent() {
 
   const loadBoard = useCallback(async (boardId?: number | null) => {
     setError(null);
-    const data = boardId
-      ? await apiClient.getTaskBoard(boardId)
-      : await apiClient.getDefaultTaskBoard();
+    if (!boardId) {
+      setBoard(null);
+      setSelectedBoardId(null);
+      boardViewStateRef.current = EMPTY_BOARD_VIEW_STATE;
+      setBoardViewState(EMPTY_BOARD_VIEW_STATE);
+      setViewTaskId(null);
+      return null;
+    }
+    const data = await apiClient.getTaskBoard(boardId);
     setBoard(data);
     setTaskLabels(data.labels || []);
     let nextViewState = normalizeBoardViewState(data.view_state);
@@ -4300,15 +4305,6 @@ function TasksPageContent() {
       const boardList = await loadBoards();
 
       if (!currentBoardId) {
-        const nextBoard = eventBoardId
-          ? boardList.find((item) => item.id === eventBoardId)
-          : boardList[0];
-        if (nextBoard) {
-          await loadBoard(nextBoard.id);
-        } else {
-          await loadBoard(null);
-          await loadBoards();
-        }
         return;
       }
 
@@ -4316,12 +4312,8 @@ function TasksPageContent() {
         (item) => item.id === currentBoardId,
       );
       if (!currentBoardAvailable) {
-        if (boardList[0]) {
-          await loadBoard(boardList[0].id);
-        } else {
-          await loadBoard(null);
-          await loadBoards();
-        }
+        await loadBoard(null);
+        router.replace("/tasks", { scroll: false });
         setSearch("");
         setOnlyMine(false);
         setSelectedColumnTarget("all");
@@ -4334,7 +4326,7 @@ function TasksPageContent() {
     } catch (syncError) {
       setError(getTaskError(syncError, "Не удалось синхронизировать доску"));
     }
-  }, [loadBoard, loadBoards]);
+  }, [loadBoard, loadBoards, router]);
 
   useTaskBoardRealtime({
     viewTaskId,
@@ -4372,7 +4364,7 @@ function TasksPageContent() {
         ] = await Promise.all([
           requestedBoardId > 0
             ? apiClient.getTaskBoard(requestedBoardId)
-            : apiClient.getDefaultTaskBoard(),
+            : Promise.resolve(null),
           apiClient.getTaskBoards({ view: "summary" }),
           apiClient.getTaskBoardGroups(),
           apiClient.getEmployees({ limit: 200, is_active: true, ordering: "last_name" }),
@@ -4387,11 +4379,13 @@ function TasksPageContent() {
         setBoards(boardList as TaskBoardSummary[]);
         setBoardGroups(groupList as TaskBoardGroup[]);
         setBoard(boardData);
-        const initialViewState = normalizeBoardViewState(boardData.view_state);
+        const initialViewState = boardData
+          ? normalizeBoardViewState(boardData.view_state)
+          : EMPTY_BOARD_VIEW_STATE;
         boardViewStateRef.current = initialViewState;
         setBoardViewState(initialViewState);
-        setSelectedBoardId(boardData.id);
-        if (window.matchMedia("(max-width: 1023px)").matches) {
+        setSelectedBoardId(boardData?.id ?? null);
+        if (boardData && window.matchMedia("(max-width: 1023px)").matches) {
           const firstColumn = (boardData.columns || []).find(
             (column: TaskColumn) => !column.is_archived && !column.parent,
           );
@@ -4401,6 +4395,7 @@ function TasksPageContent() {
         setDepartments(departmentsData.results || departmentsData || []);
         setTaskLabels(Array.isArray(labelsData) ? labelsData : labelsData.results || []);
         if (
+          boardData &&
           requestedTaskId > 0 &&
           (boardData.tasks || []).some((task: TaskCard) => task.id === requestedTaskId)
         ) {
@@ -5394,35 +5389,6 @@ function TasksPageContent() {
     }
   }, [board, loadBoard, loadBoards]);
 
-  const setDefaultBoard = useCallback(async (
-    targetBoard: Pick<TaskBoardSummary, "id" | "is_default_for_current_user">,
-  ) => {
-    if (saving || targetBoard.is_default_for_current_user) return;
-
-    setBoardActionsMenuOpen(false);
-    setSaving(true);
-    setError(null);
-    try {
-      const updatedBoard = await apiClient.setDefaultTaskBoard(targetBoard.id);
-      setBoard((current) => (
-        current
-          ? {
-              ...current,
-              is_default_for_current_user: current.id === updatedBoard.id,
-            }
-          : current
-      ));
-      setBoards((current) => current.map((item) => ({
-        ...item,
-        is_default_for_current_user: item.id === updatedBoard.id,
-      })));
-    } catch (defaultError) {
-      setError(getTaskError(defaultError, "Не удалось выбрать доску по умолчанию"));
-    } finally {
-      setSaving(false);
-    }
-  }, [saving]);
-
   const deleteBoard = useCallback(async (
     targetBoard: Pick<TaskBoardSummary, "id" | "name">,
   ) => {
@@ -5434,16 +5400,10 @@ function TasksPageContent() {
     setError(null);
     try {
       await apiClient.deleteTaskBoard(targetBoard.id);
-      const nextBoards = await loadBoards();
+      await loadBoards();
       if (selectedBoardId === targetBoard.id) {
-        const nextBoard = nextBoards[0] || null;
-        if (nextBoard) {
-          router.replace(`/tasks?board=${nextBoard.id}`, { scroll: false });
-        } else {
-          setBoard(null);
-          setSelectedBoardId(null);
-          router.replace("/tasks", { scroll: false });
-        }
+        await loadBoard(null);
+        router.replace("/tasks", { scroll: false });
         setSearch("");
         setOnlyMine(false);
         setSelectedColumnTarget("all");
@@ -5453,7 +5413,7 @@ function TasksPageContent() {
     } finally {
       setSaving(false);
     }
-  }, [loadBoards, router, saving, selectedBoardId]);
+  }, [loadBoard, loadBoards, router, saving, selectedBoardId]);
 
   const deleteSelectedBoard = useCallback(() => {
     if (!board) return;
@@ -7411,7 +7371,6 @@ function TasksPageContent() {
             onToggleHiddenGroup={(group) => void toggleBoardGroupHidden(group)}
             onEditBoard={openEditBoard}
             onDeleteBoard={(targetBoard) => void deleteBoard(targetBoard)}
-            onSetDefaultBoard={(targetBoard) => void setDefaultBoard(targetBoard)}
             onToggleBoardPin={(targetBoard) => void toggleBoardPin(targetBoard)}
             onToggleBoardNotifications={(targetBoard) => void toggleBoardNotifications(targetBoard)}
             onMoveBoard={setBoardGroupMemberships}
@@ -7422,6 +7381,8 @@ function TasksPageContent() {
           />
 
           <div className={`${mobileBoardOpen ? "flex" : "hidden"} relative min-h-0 min-w-0 flex-1 flex-col gap-4 ${desktopWideMode ? "lg:flex lg:h-full" : ""}`}>
+        {board ? (
+          <>
         <section className="app-surface relative z-50 shrink-0 overflow-visible rounded-2xl p-4">
           <div className="flex items-center justify-between gap-3">
             <div className="flex min-w-0 items-center gap-2">
@@ -7547,26 +7508,6 @@ function TasksPageContent() {
                       <Workflow size={14} className="app-text-muted shrink-0" />
                       <span>Автоматизация</span>
                     </button>
-                    <button
-                      type="button"
-                      onClick={() => board && void setDefaultBoard(board)}
-                      className="flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--foreground)] transition hover:bg-[var(--surface-secondary)] disabled:cursor-default disabled:opacity-70 disabled:hover:bg-transparent"
-                      disabled={saving || Boolean(board?.is_default_for_current_user)}
-                    >
-                      <Star
-                        size={14}
-                        className={`shrink-0 ${
-                          board?.is_default_for_current_user
-                            ? "fill-current app-accent-text"
-                            : "app-text-muted"
-                        }`}
-                      />
-                      <span>
-                        {board?.is_default_for_current_user
-                          ? "Доска по умолчанию"
-                          : "Сделать доской по умолчанию"}
-                      </span>
-                    </button>
                     <button
                       type="button"
                       onClick={() => void deleteSelectedBoard()}
@@ -7950,6 +7891,16 @@ function TasksPageContent() {
             </button>
           </TaskCardMenuPopover>
         ) : null}
+          </>
+        ) : (
+          <section className="app-surface-muted flex h-full min-h-0 flex-1 items-center justify-center rounded-xl border border-dashed border-[var(--border-subtle)]">
+            <div className="max-w-xs text-center">
+              <Kanban size={28} className="app-text-muted mx-auto mb-3" />
+              <p className="text-sm font-semibold text-[var(--foreground)]">Выберите доску</p>
+              <p className="app-text-muted mt-1 text-xs">Доска откроется справа от списка</p>
+            </div>
+          </section>
+        )}
       </div>
         </div>
       </div>
diff --git a/frontend/src/components/tasks/TaskBoardNavigator.tsx b/frontend/src/components/tasks/TaskBoardNavigator.tsx
index 3a447213..f7505f69 100644
--- a/frontend/src/components/tasks/TaskBoardNavigator.tsx
+++ b/frontend/src/components/tasks/TaskBoardNavigator.tsx
@@ -62,7 +62,6 @@ type TaskBoardNavigatorProps = {
   onToggleHiddenGroup: (group: TaskBoardGroup) => void;
   onEditBoard: (board: TaskBoardSummary) => void;
   onDeleteBoard: (board: TaskBoardSummary) => void;
-  onSetDefaultBoard: (board: TaskBoardSummary) => void;
   onToggleBoardPin: (board: TaskBoardSummary) => void;
   onToggleBoardNotifications: (board: TaskBoardSummary) => void;
   onMoveBoard: (
@@ -102,7 +101,6 @@ function BoardRow({
   onToggleMenu,
   onEdit,
   onDelete,
-  onSetDefault,
   onTogglePin,
   onToggleNotifications,
   onMove,
@@ -118,7 +116,6 @@ function BoardRow({
   onToggleMenu: () => void;
   onEdit: () => void;
   onDelete: () => void;
-  onSetDefault: () => void;
   onTogglePin: () => void;
   onToggleNotifications: () => void;
   onMove: () => void;
@@ -170,9 +167,6 @@ function BoardRow({
             <span className="min-w-0 flex-1 truncate text-sm font-semibold text-[var(--foreground)]">
               {board.name}
             </span>
-            {board.is_default_for_current_user ? (
-              <Star size={12} className="app-accent-text shrink-0 fill-current" />
-            ) : null}
             {board.is_pinned ? (
               <Pin size={12} className="app-accent-text shrink-0 fill-current" />
             ) : null}
@@ -244,20 +238,6 @@ function BoardRow({
             />
             {board.is_pinned ? "Открепить" : "Закрепить"}
           </button>
-          <button
-            type="button"
-            onClick={onSetDefault}
-            disabled={board.is_default_for_current_user}
-            className="flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--foreground)] transition hover:bg-[var(--surface-secondary)] disabled:cursor-default disabled:opacity-70 disabled:hover:bg-transparent"
-          >
-            <Star
-              size={14}
-              className={board.is_default_for_current_user ? "app-accent-text fill-current" : "app-text-muted"}
-            />
-            {board.is_default_for_current_user
-              ? "Доска по умолчанию"
-              : "Сделать по умолчанию"}
-          </button>
           <button
             type="button"
             onClick={onToggleNotifications}
@@ -310,7 +290,6 @@ export default function TaskBoardNavigator({
   onToggleHiddenGroup,
   onEditBoard,
   onDeleteBoard,
-  onSetDefaultBoard,
   onToggleBoardPin,
   onToggleBoardNotifications,
   onMoveBoard,
@@ -776,10 +755,6 @@ export default function TaskBoardNavigator({
                   onDeleteBoard(board);
                   setBoardMenuId(null);
                 }}
-                onSetDefault={() => {
-                  onSetDefaultBoard(board);
-                  setBoardMenuId(null);
-                }}
                 onTogglePin={() => {
                   onToggleBoardPin(board);
                   setBoardMenuId(null);
diff --git a/frontend/src/lib/api/tasks.ts b/frontend/src/lib/api/tasks.ts
index 86a16d3e..5e2e33a8 100644
--- a/frontend/src/lib/api/tasks.ts
+++ b/frontend/src/lib/api/tasks.ts
@@ -43,8 +43,6 @@ export function createTasksApi(request: RequestFn, requestRaw: RawRequestFn) {
     return {
         getTaskBoards: (params?: Record<string, string | number>) =>
             request(`/api/v1/tasks/boards/${buildQuery(params)}`),
-        getDefaultTaskBoard: (): Promise<TaskBoard> =>
-            request("/api/v1/tasks/boards/default/"),
         getTaskBoard: (id: number): Promise<TaskBoard> =>
             request(`/api/v1/tasks/boards/${id}/`),
         getTaskBoardParticipantCandidates: (id: number): Promise<User[]> =>
@@ -85,8 +83,6 @@ export function createTasksApi(request: RequestFn, requestRaw: RawRequestFn) {
                 method: "POST",
                 body: JSON.stringify({ groups }),
             }),
-        setDefaultTaskBoard: (id: number): Promise<TaskBoard> =>
-            request(`/api/v1/tasks/boards/${id}/set-default/`, { method: "POST" }),
         toggleTaskBoardPin: (id: number): Promise<{ ok: boolean; is_pinned: boolean }> =>
             request(`/api/v1/tasks/boards/${id}/pin/`, { method: "POST" }),
         toggleTaskBoardNotifications: (