Windows 11 Pro OEM is a genuine, permanent product key that activates Microsoft’s latest operating system on one PC — giving you the full Windows 11 Professional feature set including BitLocker encryption, Hyper-V virtualisation, Remote Desktop, Windows Sandbox, Group Policy management, and all the latest Windows 11 interface and productivity improvements. This OEM key provides a cost-effective, permanent activation for a single device, with no subscription and no expiry.

Your product key is delivered by email within 1–2 minutes of purchase. Activation is completed online directly through Windows’ built-in activation system — no Microsoft account is required for activation itself.

⚠️ Important OEM Licence Notes:

• This is an OEM key — it permanently binds to the first device it activates on and cannot be transferred to a different PC.
• This key is for clean installations only — it cannot be used as a direct in-place upgrade from Windows 10 or earlier versions via the activation screen.
• This key activates the standard Windows 11 Pro edition only — it will not activate Windows 11 Pro N (the European version with Windows Media Player removed).
• For a transferable licence that can move between PCs, see our Windows 11 Pro Retail Licence.

What Is a Windows 11 Pro OEM Key?

OEM stands for Original Equipment Manufacturer. OEM Windows licences are the same genuine Microsoft product keys used by PC manufacturers (like Dell, HP, and Lenovo) when they pre-install Windows on new computers. The software itself is identical to the retail version — you get the exact same Windows 11 Pro operating system with all features — but the licence type has specific restrictions that make it more affordable:

• Device-bound — An OEM licence permanently ties to the first PC it activates on. Unlike retail licences, it cannot be moved to a new machine if you replace your hardware.
• No transfer rights — Once activated, the licence is considered part of that PC for its lifetime. If you build a new PC or replace the motherboard, you would need a new licence.
• Same Windows features — There is no functional difference between Windows 11 Pro OEM and Windows 11 Pro Retail once activated. All Pro features, updates, and security patches are identical.
• Permanent activation — The licence never expires. Once activated, Windows 11 Pro remains permanently licensed on that device.

The OEM key is the right choice if you are activating Windows on a specific PC that you intend to keep long-term — a desktop workstation, dedicated server, a PC you’ve just built, or a device that shipped without a Windows licence. If you need the flexibility to move your licence between PCs over time, the Windows 11 Pro Retail Licence is the better option.

What’s Included — Windows 11 Pro Features

Windows 11 Pro includes everything in Windows 11 Home, plus a significant set of professional, business, and security features exclusive to the Pro edition:

• BitLocker Drive Encryption — Encrypt your entire drive to protect sensitive data from unauthorised access if your device is lost or stolen. Supports hardware-based encryption via TPM 2.0 for maximum security with minimal performance impact.
• Windows Sandbox — Run untrusted applications in a lightweight, isolated virtual environment that resets completely after every session — ideal for testing software, opening suspicious files, and security research without risking your main installation.
• Hyper-V Virtualisation — Create and run virtual machines directly on your Windows 11 Pro PC without third-party software. Run Linux, older Windows versions, or test environments side-by-side on a single machine.
• Remote Desktop (Host) — Allow other devices to connect remotely to your Windows 11 Pro PC. Essential for IT support, remote working, and accessing your workstation from another location. (Windows 11 Home can connect to remote desktops but cannot host incoming connections.)
• Group Policy Management — Apply, manage, and enforce system-wide configuration policies for users and devices — critical for businesses deploying Windows across multiple machines in a managed environment.
• Azure Active Directory and Microsoft Entra Join — Join your PC to an Azure AD or Microsoft Entra domain for centralised identity management, single sign-on, and enterprise device management via Microsoft Intune.
• Windows Information Protection (WIP) — Separate personal and corporate data on the same device, preventing accidental leakage of business data to personal apps and services.
• Assigned Access & Kiosk Mode — Lock a Windows 11 Pro device to run a single application or a limited set of apps — ideal for point-of-sale terminals, kiosk devices, and shared workstations.
• Mobile Device Management (MDM) — Enrol Windows 11 Pro devices in enterprise MDM platforms such as Microsoft Intune for remote management, policy enforcement, and compliance monitoring.
• Snap Layouts & Snap Groups — Windows 11’s enhanced window management system lets you organise up to four open applications into structured grid layouts with a single click — boosting multi-tasking productivity on large or multi-monitor setups.
• Virtual Desktops — Create separate desktop environments for different projects, contexts, or users on the same machine — keeping work, personal, and project workspaces cleanly separated.
• Microsoft Teams Integration — Teams chat and video calling integrated directly into the Windows 11 taskbar for instant access to communications without opening a separate application.
• DirectStorage — Dramatically reduces game and application loading times on NVMe SSD-equipped PCs by enabling the GPU to load assets directly from storage, bypassing the CPU bottleneck.
• Auto HDR — Automatically enhances supported games with High Dynamic Range colour and brightness on compatible displays — improving visual quality without any manual configuration.
• Windows Update for Business — Control the timing and scheduling of Windows updates for IT-managed devices, preventing disruptive updates during working hours.
• Copilot+ PC Support — Windows 11 Pro is fully compatible with Microsoft’s Copilot+ PC features on supported hardware, including AI-powered productivity enhancements across the OS.

Choose OEM if you are activating Windows on a specific PC that you plan to keep for the long term — a desktop, a new build, or any device you are not likely to replace in the near future.

Choose Retail if you want the flexibility to transfer your licence to a new PC when you upgrade your hardware, or if you need to use the key as an in-place upgrade from Windows 10.

Windows 11 Pro vs Windows 11 Home — Key Differences

If you’re deciding between Pro and Home, here are the features that are exclusive to the Pro edition:

For home users who do not need BitLocker, Hyper-V, or Remote Desktop, Windows 11 Home is available at WinCDKey at a lower price point.

Who Is the Windows 11 Pro OEM Key For?

• PC builders and self-builders who have assembled a new desktop or workstation and need a genuine Windows 11 Pro licence to activate their specific machine permanently.
• Businesses deploying fixed workstations where each machine is a dedicated device and licence transferability is not a priority.
• IT professionals and system administrators who need BitLocker encryption, Group Policy, Hyper-V, Remote Desktop hosting, and Azure AD join for managed deployments.
• Developers and technical users who need Windows Sandbox for safe testing, Hyper-V for virtual machines, and Group Policy for system configuration.
• Small businesses that want a cost-effective, permanent Windows 11 Pro activation on their office PCs without recurring software subscription costs.
• Power users and gamers who want Windows 11 Pro features like DirectStorage, Auto HDR, and Snap Layouts on a dedicated gaming or content creation PC they plan to keep long-term.
• Anyone replacing a lost, corrupt, or unactivated Windows installation on a PC they intend to continue using.

Product Details at a Glance

• Product: Microsoft Windows 11 Professional
• Licence Type: OEM — permanent, device-bound, non-transferable
• Activation Method: Online — entered in the Windows activation settings after installation
• Devices Covered: 1 PC
• Microsoft Account Required: No — activation does not require a Microsoft account
• Transferable: No — permanently bound to the first device activated
• Upgrade from Windows 10: No — clean installation only
• Activates Windows 11 Pro N: No — standard Windows 11 Pro only
• Platform: PC only
• Region: Global
• Languages: Multilingual
• Delivery: Electronic product key by email within 1–2 minutes
• Support: Live chat and email, lifetime activation support

Windows 11 Pro System Requirements

• Processor: 1 GHz or faster with at least 2 cores on a compatible 64-bit processor or System on a Chip (SoC)
• RAM: 4 GB minimum
• Storage: 64 GB or larger storage device
• System Firmware: UEFI with Secure Boot capability
• TPM: Trusted Platform Module (TPM) version 2.0 — required
• Graphics: DirectX 12 compatible graphics card or integrated GPU with a WDDM 2.0 driver
• Display: HD (720p) display, 9-inch diagonal or larger, 8 bits per colour channel minimum
• Internet: Required for initial activation and Windows updates

Important: Windows 11 requires TPM 2.0 and Secure Boot. If your PC does not meet these requirements, it cannot run Windows 11. To check compatibility, download and run the PC Health Check app from Microsoft’s website before purchasing. If your PC is not compatible, Windows 10 Pro remains fully supported until October 2025 and is available at WinCDKey.

How to Install and Activate Windows 11 Pro with Your OEM Key

1. Purchase and receive your key — Your Windows 11 Pro OEM product key will be emailed within 1–2 minutes of confirmed payment, along with download instructions.
2. Download the Windows 11 installation media — Visit Microsoft’s official website and use the Media Creation Tool to create a bootable USB drive or download the Windows 11 ISO file.
3. Install Windows 11 Pro — Boot your PC from the USB drive and follow the setup wizard. When asked which edition to install, select Windows 11 Pro.
4. Enter your product key during setup — When the setup wizard asks for a product key, enter your 25-character OEM key exactly as shown in your email. Alternatively, skip this step and enter the key after installation via Settings.
5. Complete installation — Follow the remaining on-screen setup steps to complete the Windows 11 installation and initial configuration.
6. Activate via Settings (if not activated during setup) — Go to Settings → System → Activation, click “Change product key”, and enter your 25-character key. Windows will connect to Microsoft’s activation servers to complete activation automatically.
7. Activation complete — Windows 11 Pro is now permanently activated on your PC. The Activation page in Settings will show “Windows is activated”.

For detailed guidance, visit our Installation & Activation Guide or contact our team via the Help & Support Centre.

Why Buy from WinCDKey?

• ⚡ Instant Key Delivery — Product key emailed within 1–2 minutes of confirmed payment, 24 hours a day, 7 days a week.
• ✅ Official Microsoft Partner — Verified Microsoft Partner. Confirm our partner profile here.
• 🛡️ Lifetime Activation Support — Any activation issues? Our expert support team resolves them at no extra cost, for the lifetime of your licence.
• 💳 One-Time Payment, No Subscription — Pay once and your Windows 11 Pro OEM activation never expires. No annual renewal fees.
• 🔒 Secure Checkout — All transactions are fully encrypted for complete payment security.
• ⭐ Trusted by 200,000+ Customers — Read verified reviews on our Trustpilot page.

You Might Also Be Interested In

• Windows 11 Pro – Retail Licence — The transferable retail version. Move your licence to a new PC when you upgrade hardware, or use it as an in-place upgrade from Windows 10.
• Windows 11 Pro – MAK (Multiple Activation Key) — For organisations deploying Windows 11 Pro across multiple devices using volume activation.
• Windows 11 Pro – 5 PC Keys — Activate Windows 11 Pro across five PCs in one purchase — ideal for small business deployments.
• Windows 11 Home — For home users who don’t need BitLocker, Hyper-V, or Remote Desktop. Available at a lower price point.
• Windows 11 Home OEM Key — The OEM version of Windows 11 Home for device-bound permanent activation at the lowest price.
• Upgrade Windows 11 Home to Pro — Already running Windows 11 Home? This upgrade key unlocks all Pro features without reinstalling Windows.
• Windows 10 Pro Key — If your PC doesn’t meet Windows 11 hardware requirements, Windows 10 Pro remains a fully supported and capable OS.
• Windows 11 Pro + Office 2021 Pro Plus Bundle — Pair your Windows 11 Pro licence with a genuine Office 2021 key in one bundled purchase and save.
• Windows 11 Pro + Office 2024 Pro Plus Bundle — Combine Windows 11 Pro with the latest Office 2024 Professional Plus key for maximum value.
• Browse all Windows 11 products at WinCDKey — View every Windows 11 edition and variant available.

Frequently Asked Questions

What is the difference between a Windows 11 Pro OEM key and a Retail key?

The Windows 11 Pro software is identical in both cases — you get the full Pro feature set regardless of licence type. The difference is in the licence terms. An OEM key permanently binds to the first PC it activates on and cannot be transferred to a new machine. A Retail key can be deactivated and moved to a different PC when you upgrade hardware, and can be used as an in-place upgrade from Windows 10.

Can I use this OEM key to upgrade from Windows 10?

No. This OEM key is for clean installations only. It cannot be used as an in-place upgrade from Windows 10 via the activation settings. If you need to upgrade directly from Windows 10 Pro while keeping your apps and files, please use the Windows 11 Pro Retail Licence instead.

Does this key work for Windows 11 Pro N?

No. This key activates the standard Windows 11 Pro edition only. It will not activate Windows 11 Pro N, which is the European edition with Windows Media Player removed. These are separate editions that require different product keys.

Is a Microsoft account required to activate Windows 11 Pro?

No. A Microsoft account is not required to enter your product key and activate Windows 11 Pro. Activation is completed through the Windows activation system using your 25-character key. However, Microsoft recommends signing in with a Microsoft account during initial setup to enable features such as OneDrive sync, the Microsoft Store, and account-based settings backup.

What happens if I replace my PC’s motherboard?

Because an OEM licence is permanently tied to the original hardware, replacing the motherboard effectively constitutes a new PC and the existing OEM activation may not transfer. If hardware flexibility is important to you, the Windows 11 Pro Retail Licence offers transfer rights.

My PC doesn’t have TPM 2.0 — can I still install Windows 11?

Windows 11 officially requires TPM 2.0, Secure Boot, and a compatible 64-bit processor. If your PC does not meet these requirements, Microsoft’s standard installer will block the installation. For PCs that don’t meet Windows 11 requirements, Windows 10 Pro remains a fully supported option until October 2025.

Can I install Windows 11 Pro on multiple PCs with this key?

No. This OEM key activates one PC only and cannot be reused after the first activation. For multi-device deployments, see our Windows 11 Pro 5 PC Keys option or Windows 11 Pro MAK for volume deployments.

What is the difference between Windows 11 Pro and Windows 11 Home?

Windows 11 Pro adds BitLocker encryption, Hyper-V virtualisation, Windows Sandbox, Remote Desktop hosting, Group Policy management, Azure AD join, Mobile Device Management, and Windows Update for Business — none of which are available in Windows 11 Home. For users who need any of these features, Pro is essential. For everyday home use without these requirements, Windows 11 Home is sufficient and more affordable.

How quickly will I receive my product key?

Your product key is delivered by email within 1–2 minutes of confirmed payment, 24 hours a day, 7 days a week — including weekends and public holidays.