Windows 10: Can't separate monitor from laptop screen

I have a monitor plugged into my laptop. I want to see the screen on the monitor, but not on the laptop, when they are connected. This was never a problem previously, but suddenly both screens are now "lit" and I can't find the setting to separate them. When I go to Display Settings, I can't find anything noting there are two displays... Help? (Windows 10) Thanks!

:)

 

Laptop with broken screen How much?

I would like suggestions and look in local stores. I dont wanna buy a laptop from someone online. Sorry. But could be a good idea if you asked him about the performance on older games. Gonna make a list ofall laptops people suggest me.

Remove the screen for space purpose here its small desk and if the screen is opened it will hide my 22 inches lcd

 

Overclocking / Undervolting guide for Vega 56 or 64?

Here's a quick laundry list:

List of software to use for overclocking and testing
Examples:
Wattman (and how to find and use it, like an overview, including profiles)
Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

Step-by step overclocking in Wattman
Fan speeds
Power limit
Temp limit
Voltages
Core speeds
Memory speeds

 

Looking for help with laptop screen

It's quite easy to replace a screen, try to find a disassembly guide for the specific model of laptop so you have a step by step indication of where to take screws out and what clips to unclip. There might be some youtube videos as well. Always make sure the replacement screen is compatible as there can be different connectors.