diff --git a/CourseNet.Data.Models/Entities/Course.cs b/CourseNet.Data.Models/Entities/Course.cs
index cb6d92a..a25da63 100644
--- a/CourseNet.Data.Models/Entities/Course.cs
+++ b/CourseNet.Data.Models/Entities/Course.cs
@@ -74,9 +74,6 @@ public Course()
         [Comment("Collection of Categories")]
         public virtual ICollection<Category> Categories { get; set; } = new HashSet<Category>();
 
-        //[Comment("Collection of Students")]
-        //public virtual ICollection<User> Students { get; set; } = new HashSet<User>();
-
         [Comment("Collection of Lectures")]
         public virtual ICollection<Lecture> Lectures { get; set; } = new HashSet<Lecture>();
 
diff --git a/CourseNet.Data.Models/Entities/Enums/CourseStatus.cs b/CourseNet.Data.Models/Entities/Enums/CourseStatus.cs
index d2ec131..10af704 100644
--- a/CourseNet.Data.Models/Entities/Enums/CourseStatus.cs
+++ b/CourseNet.Data.Models/Entities/Enums/CourseStatus.cs
@@ -3,7 +3,6 @@
     public enum CourseStatus
     {
         Active,
-        Inactive,
         Completed,
         Archived    
     }
diff --git a/CourseNet.Data.Models/Entities/Material.cs b/CourseNet.Data.Models/Entities/Material.cs
index e822dd1..639002f 100644
--- a/CourseNet.Data.Models/Entities/Material.cs
+++ b/CourseNet.Data.Models/Entities/Material.cs
@@ -1,7 +1,6 @@
-using System.ComponentModel.DataAnnotations;
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
-using CourseNet.Common.DataConstants;
 using static CourseNet.Common.DataConstants.Material;
 namespace CourseNet.Data.Models.Entities
 {
diff --git a/CourseNet.Web.Infrastructure/ModelBinders/DecimalModelBinderProvider.cs b/CourseNet.Web.Infrastructure/ModelBinders/DecimalModelBinderProvider.cs
index 316c43d..c6de567 100644
--- a/CourseNet.Web.Infrastructure/ModelBinders/DecimalModelBinderProvider.cs
+++ b/CourseNet.Web.Infrastructure/ModelBinders/DecimalModelBinderProvider.cs
@@ -4,13 +4,16 @@ namespace CourseNet.Web.Infrastructure.ModelBinders
 {
     public class DecimalModelBinderProvider : IModelBinderProvider
     {
+        // ModelBinderProviderContext is a context object for creating an IModelBinder.
         public IModelBinder GetBinder(ModelBinderProviderContext context)
         {
+            // If the context is null, throw an ArgumentNullException.
             if (context == null)
             {
                 throw new ArgumentNullException(nameof(context));
             }
-
+            // If the model type is decimal or decimal?, return a new DecimalModelBinder.
+            // The DecimalModelBinder is a custom model binder for decimal and decimal? types.
             if (context.Metadata.ModelType == typeof(decimal) || context.Metadata.ModelType == typeof(decimal?))
             {
                 return new DecimalModelBinder();
diff --git a/CourseNet.Web.ViewModels/User/LoginFormModel.cs b/CourseNet.Web.ViewModels/User/LoginFormModel.cs
index 5feebfb..4984629 100644
--- a/CourseNet.Web.ViewModels/User/LoginFormModel.cs
+++ b/CourseNet.Web.ViewModels/User/LoginFormModel.cs
@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.ComponentModel.DataAnnotations;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using System.ComponentModel.DataAnnotations;
 
 namespace CourseNet.Web.ViewModels.User
 {
diff --git a/CourseNet.Web.ViewModels/User/UserViewModel.cs b/CourseNet.Web.ViewModels/User/UserViewModel.cs
index 39948cc..3bfb395 100644
--- a/CourseNet.Web.ViewModels/User/UserViewModel.cs
+++ b/CourseNet.Web.ViewModels/User/UserViewModel.cs
@@ -1,10 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace CourseNet.Web.ViewModels.User
+namespace CourseNet.Web.ViewModels.User
 {
     public class UserViewModel
     {
diff --git a/CourseNet/Controllers/CategoriesController.cs b/CourseNet/Controllers/CategoriesController.cs
index 3aed875..f496411 100644
--- a/CourseNet/Controllers/CategoriesController.cs
+++ b/CourseNet/Controllers/CategoriesController.cs
@@ -257,7 +257,6 @@ private IActionResult GeneralError()
         {
             TempData[ErrorMessage] = GeneralErrorMessage;
             return RedirectToAction("Index", "Home");
-
         }
     }
 }
diff --git a/CourseNet/StartUp.cs b/CourseNet/StartUp.cs
index 34b68d3..9f36e8f 100644
--- a/CourseNet/StartUp.cs
+++ b/CourseNet/StartUp.cs
@@ -40,6 +40,7 @@
     cfg.AccessDeniedPath = "/Home/Error/401";
 });
 
+// Add services to the container automatically due to the ModelBinderProvider.
 builder.Services
     .AddControllersWithViews()
     .AddMvcOptions(options =>
diff --git a/CourseNet/Views/User/Register.cshtml b/CourseNet/Views/User/Register.cshtml
index 1e9f0a5..80c2aba 100644
--- a/CourseNet/Views/User/Register.cshtml
+++ b/CourseNet/Views/User/Register.cshtml
@@ -35,7 +35,7 @@
                 <label asp-for="LastName">Фамилия</label>
                 <span asp-validation-for="LastName" class="text-danger"></span>
             </div>
-            <recaptcha-v3 form-id="registerForm" action="submit" class="w-100 btn btn-lg btn-primary">Register</recaptcha-v3>
+            <recaptcha-v3 form-id="registerForm" action="submit" class="w-100 btn btn-lg btn-primary">Регистрирай се</recaptcha-v3>
         </form>
     </div>
 </div>