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A Windows 11 Pro OEM key is a license for the professional edition of Windows 11, sold under OEM (Original Equipment Manufacturer) terms. OEM licenses are aimed at system builders and are usually cheaper than retail copies, which makes them popular with people building or refurbishing their own PCs.
OEM licenses are tied to the first computer they activate, specifically its motherboard. If you later replace the motherboard or buy a new PC, the license generally cannot be moved. Retail licenses cost more but can be transferred between computers.
Windows 11 Pro includes everything in Windows 11 Home plus features for power users and businesses. These include BitLocker device encryption, Remote Desktop hosting, Hyper-V virtualization, Windows Sandbox, Group Policy, and the ability to join an Active Directory domain or Microsoft Entra ID. It is the edition most small businesses and IT-savvy users choose.
Windows 11 has stricter hardware requirements than Windows 10. Your PC needs a supported 64-bit processor, TPM 2.0, UEFI with Secure Boot, at least 4 GB of RAM, and 64 GB of storage. Check compatibility with Microsoft's PC Health Check app before you buy.
Compare Windows 11 Pro OEM key prices on CDKeyCompares, and read why OEM keys are so cheap before choosing a seller.
Professional edition of Windows 11 under OEM terms.
Tied to the first PC it activates; generally not transferable.
BitLocker device encryption.
Remote Desktop hosting and Hyper-V virtualization.
Windows Sandbox and Group Policy management.
Join Active Directory domains or Microsoft Entra ID.
Can upgrade Windows 11 Home to Pro.
Requires TPM 2.0, Secure Boot, and a supported CPU.
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