: Use the Microsoft Media Creation Tool to create installation media for free.
Microsoft does provide official free product keys for Windows 10 outside of its original upgrade period. While many sites claim to offer "free updated keys," these are typically generic installation keys or KMS (Key Management Service) client keys. Generic vs. Genuine Keys Windows-10-Product-Key-2023-Free-Download--Updated-2023-
: Enter a genuine product key during setup or go to Settings > Update & Security > Activation > Change product key . : Use the Microsoft Media Creation Tool to