How Do I find my product key? Windows 10 blue screen.

[Classychic]

I got this laptop 15-f211wm last spring. windows 10 64 bit already built in.
Blue error screen NTFS file system stop code.

I need to do a system recovery maybe. But how do I find my windows 10 product key? It came already preinstalled in my laptop.

[Huffer · Accepted solution]

You do not need a Key. Microsoft uses a new method to authenticate Windows 10. You can go to the Media Creation Tool site download and make a thumb drive for the same version of Windows 10 (likely Home 64 bit) install it and it will just activate. The activation servers "know" your computer. It has worked for me dozens of times. 

https://www.microsoft.com/en-us/software-download/windows10

After installing the bare OS drivers and some apps can be downloaded here. 

If this is "the Answer" please click "Accept as Solution" to help others find it. 

[Classychic]

Even after I wipe the hard drive?

[Huffer]

Even so. Yes. 

The biggest change of all is that the Windows 10 activation status for a device is stored online. After you successfully activate Windows 10 for the first time, that device will activate automatically in the future, with no product key required.

That's a huge change from previous versions of Windows, which required a product key for every installation. 

http://www.zdnet.com/article/microsoft-quietly-rewrites-its-activation-rules-for-windows-10/

[Classychic]

Okay thanks so much!! Had to purchase a recovery CD online because I didnt have one.

[Huffer]

You should not ever need to buy it...you can download for free. 

[Classychic]

I dont have a way to get it from the site because my laptop won't turn on windows. It was cheap.