Welcome to Justanswer.com, my name is ***** ***** I will do my best to assist you.
To start with, can you tell me the full and exact model of your Hp computer. If you arent certain, you can run the free program on the page below which will find all the info for us.
Once you know your model or service tag, send a reply with that information. Thank you,
Ok, Ive looked up your Hp model on the HP website, and the problem has revealed itself.
HP has not released any drivers for windows 10 for your model of computer.
Its possible we could use the windows 8 drivers and get your display working properly again. Its also possible we could fix the sleep mode issue.
But its also possible and likely that we may need to downgrade from windows 10 back to your previous OS.
Before we begin the process of trying to install the needed drivers or downgrading the os, would you like to try our remote support service. Where I can connect to your computer from here and try and resolve the issues myself?
Or would you prefer to have me assist you via written communication only.
Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.