diff --git a/back-end/src/ams/migrations/0004_fix_student_deletion.py b/back-end/src/ams/migrations/0004_fix_student_deletion.py
deleted file mode 100644
index 193963a4..00000000
--- a/back-end/src/ams/migrations/0004_fix_student_deletion.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# Generated by Django 3.2.20 on 2024-09-06 13:00
-
-from django.conf import settings
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ('common', '0004_add_personal_documents_info'),
-        ('ams', '0003_add_personal_documents_info'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='applicant',
-            name='contact_info',
-            field=models.OneToOneField(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='common.contactinfo'),
-        ),
-        migrations.AlterField(
-            model_name='applicant',
-            name='user',
-            field=models.OneToOneField(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL),
-        ),
-    ]
diff --git a/back-end/src/ams/models/applicants.py b/back-end/src/ams/models/applicants.py
index 8e738e26..fe11d777 100644
--- a/back-end/src/ams/models/applicants.py
+++ b/back-end/src/ams/models/applicants.py
@@ -149,9 +149,7 @@ class Applicant(models.Model):
     )
     contact_info = models.OneToOneField(
         to=ContactInfo,
-        on_delete=models.SET_NULL,
-        null=True,
-        blank=True,
+        on_delete=models.RESTRICT,
     )
     photo = models.OneToOneField(
         to=Photo,
@@ -174,9 +172,7 @@ class Applicant(models.Model):
     )
     user = models.OneToOneField(
         to=get_user_model(),
-        on_delete=models.SET_NULL,
-        null=True,
-        blank=True,
+        on_delete=models.RESTRICT,
     )
 
     objects = ApplicantManager()
diff --git a/back-end/src/lms/migrations/0009_fix_student_deletion.py b/back-end/src/lms/migrations/0009_fix_student_deletion.py
deleted file mode 100644
index ba94d876..00000000
--- a/back-end/src/lms/migrations/0009_fix_student_deletion.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# Generated by Django 3.2.20 on 2024-09-06 13:00
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('common', '0004_add_personal_documents_info'),
-        ('lms', '0008_add_personal_documents_info'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='student',
-            name='contact_info',
-            field=models.OneToOneField(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='common.contactinfo'),
-        ),
-    ]
diff --git a/back-end/src/lms/models/students.py b/back-end/src/lms/models/students.py
index 71757358..7c7642b6 100644
--- a/back-end/src/lms/models/students.py
+++ b/back-end/src/lms/models/students.py
@@ -72,9 +72,7 @@ class Post(models.TextChoices):
     )
     contact_info = models.OneToOneField(
         to=ContactInfo,
-        on_delete=models.SET_NULL,
-        null=True,
-        blank=True,
+        on_delete=models.RESTRICT,
     )
 
     # --------------------------------------------------------------------------
@@ -210,6 +208,13 @@ def student_post_callback(sender, instance: Student, *args, **kwargs):
 
 @receiver(models.signals.post_delete, sender=Student)
 def post_delete_fields(sender, instance: Student, **kwargs):
+    # Если у пользователя есть модель абитуриента, удаляем и её
+    if instance.user:
+        try:
+            applicant = Applicant.objects.get(user=instance.user)
+            applicant.delete()
+        except Applicant.DoesNotExist:
+            pass
     # pylint: disable=unused-argument
     attributes_to_delete = [
         "user",
diff --git a/back-end/src/lms/views/students.py b/back-end/src/lms/views/students.py
index 940a0287..e8df9e10 100644
--- a/back-end/src/lms/views/students.py
+++ b/back-end/src/lms/views/students.py
@@ -160,7 +160,7 @@ def registration(self, request):
         serializer = self.get_serializer(instance)
         return Response(serializer.data)
 
-    @action(detail=False, methods=["post"], permission_classes=[permissions.AllowAny])
+    @action(detail=False, methods=["post"], permission_classes=[permissions.IsAdminUser])
     def register_from_applicant(self, request):
         request.data[
             "status"
diff --git a/front-end/src/components/ApplicantToStudent/index.vue b/front-end/src/components/ApplicantToStudent/index.vue
index 14e53aa3..357f719b 100644
--- a/front-end/src/components/ApplicantToStudent/index.vue
+++ b/front-end/src/components/ApplicantToStudent/index.vue
@@ -16,7 +16,7 @@
 
           <div class="title-container">
             <h3 class="sub-title">
-              Регистрация студента
+              Регистрация студента ВУЦ из абитуриента
             </h3>
           </div>
 
@@ -37,10 +37,10 @@
         :visible.sync="registrationComplete"
       >
         <p>
-          Ожидайте подтверждения регистрации.
+          Абитуриент успешно зарегистрирован в качестве студента Военного учебного центра.
         </p>
         <p>
-          После подтверждения на Вашу почту будет выслана ссылка для создания пароля.
+          Информацию о нём можно просмотреть в разделе "Личный состав ВУЦ".
         </p>
       </ElDialog>
     </ElCol>
@@ -74,7 +74,7 @@ export default {
       this.registrationComplete = true;
       setTimeout(() => {
         this.$router.replace({ name: "Login" });
-      }, 4000);
+      }, 2000);
     },
   },
 };