diff --git a/lib/model/settingsData.ts b/lib/model/settingsData.ts
index 16a6fac..0d13794 100644
--- a/lib/model/settingsData.ts
+++ b/lib/model/settingsData.ts
@@ -119,6 +119,7 @@ export interface QuizConfig {
   showfc?: boolean;
   yandexMetricsNumber?: number;
   vkMetricsNumber?: number;
+  backBlocked?: boolean;
 }
 
 export type FormContactFieldName = "name" | "email" | "phone" | "text" | "address";
diff --git a/lib/utils/hooks/FlowControlLogic/useAIQuiz.ts b/lib/utils/hooks/FlowControlLogic/useAIQuiz.ts
index 02b4d23..f318c82 100644
--- a/lib/utils/hooks/FlowControlLogic/useAIQuiz.ts
+++ b/lib/utils/hooks/FlowControlLogic/useAIQuiz.ts
@@ -76,7 +76,7 @@ export function useAIQuiz() {
   const setQuestion = useCallback((_: string) => {}, []);
 
   //Анализ дисаблить ли кнопки навигации
-  const isPreviousButtonEnabled = quizStep > 0;
+  const isPreviousButtonEnabled = settings.cfg?.backBlocked ? false : quizStep > 0;
 
   //Анализ дисаблить ли кнопки навигации
   const isNextButtonEnabled = useMemo(() => {
diff --git a/lib/utils/hooks/FlowControlLogic/useBranchingQuiz.ts b/lib/utils/hooks/FlowControlLogic/useBranchingQuiz.ts
index 93b7bbe..639a2bc 100644
--- a/lib/utils/hooks/FlowControlLogic/useBranchingQuiz.ts
+++ b/lib/utils/hooks/FlowControlLogic/useBranchingQuiz.ts
@@ -221,7 +221,7 @@ export function useBranchingQuiz() {
   );
 
   //Анализ дисаблить ли кнопки навигации
-  const isPreviousButtonEnabled = Boolean(prevQuestion);
+  const isPreviousButtonEnabled = settings.cfg?.backBlocked ? false : Boolean(prevQuestion);
 
   //Анализ дисаблить ли кнопки навигации
   const isNextButtonEnabled = useMemo(() => {
diff --git a/lib/utils/hooks/FlowControlLogic/useLinearQuiz.ts b/lib/utils/hooks/FlowControlLogic/useLinearQuiz.ts
index 70f7a27..427011c 100644
--- a/lib/utils/hooks/FlowControlLogic/useLinearQuiz.ts
+++ b/lib/utils/hooks/FlowControlLogic/useLinearQuiz.ts
@@ -221,7 +221,7 @@ export function useLinearQuiz() {
   );
 
   //Анализ дисаблить ли кнопки навигации
-  const isPreviousButtonEnabled = Boolean(prevQuestion);
+  const isPreviousButtonEnabled = settings.cfg?.backBlocked ? false : Boolean(prevQuestion);
 
   //Анализ дисаблить ли кнопки навигации
   const isNextButtonEnabled = useMemo(() => {