check these status before you buy a new windows 10 installed computer
If your windows is genuine you can see like this
If it shows windows is activated your windows is genuine.
if it shows “windows is activated with organization’s activation service” it is a kms activation
You can use cmd to know about this.
open cmd and type slmgr /xpr
If it shows T83GX in this window your windows is a kms activation
Chesoft 