Not model number.
The name of the laptop.
For example lenovo yoga C930
Or if you can't find it
What processor does it use?
What graphics card does it have?
How much RAM does it have?
I wouldn't know the laptop by look of it. Only the brand.
Here is where you find the answer to those 3 questions:
Type into the search bar in the bottom left of your screen "system information". If there is no search bar right click and hope to God that there is something that states system information because I am not at a laptop right now to confirm that.
When you are at your system information
Just simply copy what it states next to:
About the graphics card you won't find it in system information. You will find it if you search run click on it then search up in run "dxdiag" then click "Display" then copy what is next to "Chip Type:"
I mean search in the bottom left search bar. Run is an application you must use it or do it another way but I already stated this way so there is no point using another way.
You should get something like (not exact numbers or letters just something like what I said.)
Installed RAM: 4GB
Processor: Intel i7 something (numbers should be where I said something.
Chip Type: Intel graphics 4000
Chip Type doesn't need to be Intel. It can be AMD or Nividia.
Please tell me it helped or don't so that I can help you.