Through the Academic Volume Licensing agreements, schools can purchase access to Windows 10 Education for their students, faculty, and staff. You can get these either as downloads or on USB drives. Having said that, there is no fixed price to get volume licenses and you will have to negotiate with Microsoft to get a better deal.
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So if this is the issue on your mind, then the easy answer to that is here. To permanently activate it without paying a penny, are you looking for the Windows 10 Product Key?
Windows 10 Home. Windows 10 Pro Key. Shelling out $ for Windows 10 Home or $ for Windows 10 Pro feels Only sporadic success has been reported for volume license keys.
Maugul post a comment:
Below is the list of generic license keys for all Windows 10 editions. Sindows retail license can be used to activate Windows on one system to another as you upgrade your hardware over time.
Tazshura post a comment:
Windwos they can move the keys around, and as long as it was the same brand of motherboard it would activate for that computer, and no longer be active on the old system.