You are Mispelled enctype in Form Tag that's why posted file always be null
Your Code
@using (Html.BeginForm("Create", "HOME", FormMethod.Post, new {enctype="mulipart/form-data" }))
Corrected Code
@using (Html.BeginForm("Create", "HOME", FormMethod.Post, new { enctype = "multipart/form-data" }))
Hope this helps