I have a Lenovo Yoga 2 11 laptop and it's been broken for almost 2 years now. Initially stopped working after a windows 10 update and then gave it to a tech friend to fix. He never finished fixing it due to a falling out but I have no clue what he did. It doesn't really do much. I can get to certain functions but can't get into the actual computer itself anymore. Do I need to replace the harddrive or something in ng or can I fix it myself somehow?