You want to make sure you have a full OEM licensed version of windows 10 PRO, and not a partial copy.

Run or paste this command and hit Enter:

slmgr.vbs /dlv

On the resulting dialog, under Name you will see the Edition of Windows 10 and under Description, you will see if that is a genuine Retail license, an OEM license or a Volume license. You don't want a volume copy.