Microsoft KW9-00140 Windows 10 Home 64-bit OEM

The Microsoft KW9-00140 Windows 10 Home 64-bit OEM System Builder edition provides a genuine, fully functional Windows 10 Home license intended for new PC builds. This is the same operating system found on consumer PCs worldwide, offering the familiar Windows desktop environment, Microsoft Edge browser, Windows Defender security, Cortana assistant, and full access to the Microsoft Store. The 64-bit architecture supports modern hardware with more than 4 GB of RAM, and the license is upgradeable to Windows 11 provided the target hardware meets Microsoft's compatibility requirements, including TPM 2.0 and Secure Boot support.

As an OEM System Builder product, this edition comes with important restrictions that distinguish it from the pricier Retail version. The license is permanently bound to the first motherboard it is activated on and cannot be transferred to another machine. Microsoft does not provide direct technical support for OEM licenses — that responsibility falls to the system builder or the end user. The product ships as a DVD in a plain envelope with a scratch-off product key, so users building systems without an optical drive will need to create a bootable USB installer using Microsoft's free Media Creation Tool on a separate computer. For anyone assembling a new desktop or workstation on a budget, this OEM license delivers the complete Windows 10 Home experience at a meaningfully lower cost than retail.