Jennifer gets a boot error when she turns on her computer. Leo says that it's likely that her hard drive has died. Leo says the good news is that hard drives are cheap to replace and really easy to install. Also, since Jennifer had upgraded to Windows 10, all she needs to do is download and install Windows 10 with the media creation tool and a thumb drive. A solid state drive would speed things up too. She should make sure to get one with the same kind of connector. It could be SATA or IDE, so she should bring the bad hard drive with her. This is why backing up is such a blessing.