First tell me is it black from the start or after the windows boot screen. If it's from the start like you push the power button and black but the laptop is working then it's 99% screen problem replace it. If it's after windows screen, then its windows issue can be driver related or so many other 100 reasons. If you don't have any data in it, direct fresh windows install will fix it but if you want to save your data PM me I faced so many of these issues in my book report services office I'm a Pro now. I hope my suffering helped someone. :D