starup

Every time i start/restart my pc it will open CMD and have a blackscreen, i can use crt+alt+del to open taskmanager and start a new task aka windows explorer but i wont start on its own

So my friend asked me to put win8.1 on her Asus X552LDV laptop and after i installed it and the drivers from the attached CD, i couldn't find Bluetooth. she had to take her laptop, so i can only help her over the internet, but even when she downloaded and installed bluetooth drivers from the...