Windows 10 Pro OEM Key – Cheapest Genuine Licence for 1 PC

Buy a genuine Windows 10 Pro OEM key from LicenceHouse — the most affordable route to the full professional edition of Microsoft's most trusted operating system. Instant email delivery, lifetime activation, 100% verified through Microsoft. From just €7.07.

Price: from €7.07 | Delivery: Instant by email | Licence: Lifetime, 1 PC (device-locked)

What Is a Windows 10 Pro OEM Key?

An OEM (Original Equipment Manufacturer) key is a genuine Microsoft product key that permanently activates Windows 10 Pro on one specific device. The licence ties to the machine's hardware on first activation and cannot be moved to another PC. OEM keys are used by PC builders, IT professionals, and system integrators worldwide — they activate through Microsoft's official servers and deliver the complete, full-featured Windows 10 Pro experience at a significantly lower cost than Retail.

Full Windows 10 Pro Feature Set

• BitLocker Drive Encryption: Full-disk, hardware-backed encryption to protect sensitive data — essential for business laptops and remote workers
• Remote Desktop Protocol (RDP): Remotely access this PC from anywhere — ideal for home offices and IT administration
• Hyper-V Virtualisation: Run virtual machines locally for development, testing, and multi-OS environments
• Domain Join & Group Policy: Connect to Active Directory and manage devices centrally across a business network
• Azure Active Directory Join: Cloud-first identity management for Microsoft 365 environments
• Windows Update for Business: Control update scheduling to prevent unexpected restarts during work hours
• Assigned Access / Kiosk Mode: Lock a device to a single application for retail, public, or shared-PC use
• Encrypting File System (EFS): Per-file encryption at the NTFS level as an additional security layer
• Mobile Device Management (MDM): Integrate with Microsoft Intune for fleet-wide device compliance and management
• Plus all Windows 10 Home features: Start Menu, Windows Hello, Edge, Cortana, OneDrive, Game Mode, Defender

What's Included with Your Purchase

• ✅ One genuine 25-character Windows 10 Pro OEM activation key
• ✅ Lifetime activation for 1 PC — no subscriptions, no renewals
• ✅ All languages supported globally
• ✅ Instant email delivery — 24/7
• ✅ Official ISO: Download Windows 10 from Microsoft
• ✅ 30-day warranty from LicenceHouse
• ✅ Full UK & EU customer support

OEM vs Retail — Which Is Right for You?

• OEM (this product): Device-locked. Cheaper. Best for a single fixed installation — building a new PC, refurbishing hardware, or a permanent work machine.
• Retail: Transferable between PCs. See our Windows 10 Pro Retail key (€7.10) if you regularly upgrade or replace hardware.

Windows 10 Pro System Requirements

• Processor: 1 GHz or faster (64-bit)
• RAM: 4 GB minimum
• Storage: 64 GB minimum
• Display: 800 × 600 or higher

How to Activate Your Windows 10 Pro OEM Key

1. Purchase — key arrives instantly by email
2. Download Windows 10 ISO from Microsoft (link above)
3. Go to Settings → Update & Security → Activation → Change product key
4. Enter your 25-character OEM key and click Next
5. Windows activates permanently through Microsoft's servers

Also Consider

• Want a transferable licence? See our Windows 10 Pro Retail key
• Need Home only? Check our Windows 10 Home OEM key or Windows 10 Home Retail key
• Ready for Windows 11 Pro? See our Windows 11 Pro OEM key or Windows 11 Pro Retail key
• Browse our full Windows licence key collection

Frequently Asked Questions

Is the OEM key genuine and legal?
Yes — 100% genuine Microsoft licence. It activates through Microsoft's official servers and your PC will show "Windows is activated" after installation.

Can I use an OEM key after a reinstall on the same PC?
Yes. If you reinstall Windows on the same machine, your OEM key will reactivate automatically since it's tied to your hardware.

What's the difference between this OEM key and the Retail key?
This OEM key is device-locked — it cannot be transferred to another PC. Our Retail key costs slightly more but can be moved to a new machine if you upgrade.