What should you do after replacing the system board on a Windows 10 system?

After replacing the system board on a Windows 10 system, entering the 5 x 5 Digital Product Key and providing the DPK Card to the customer is crucial. This process ensures that the operating system on the new system board is properly activated. Each system board and its associated operating system may require unique activation to ensure compliance with licensing agreements.

The Digital Product Key links the system's hardware with the Windows 10 software, and entering this key is a critical step in the setup process after hardware modifications. Providing the DPK Card to the customer also helps maintain clear communication regarding their licensing, empowering them with proof of activation that they can refer to if needed in the future.

While other steps may be important in maintaining system functionality or addressing issues, the primary goal after a system board replacement is to ensure that the operating system is activated correctly; thus, entering the Digital Product Key is the most pertinent action.