1,000+ customers have activated Microsoft keys from us with a 99.8% success rate.
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Windows 11 Pro
Windows 11 Pro is the most capable Windows OS ever made — built for businesses, power users, and anyone who demands the best. Unlike grey-market OEM keys tied to dead hardware, this is a genuine retail licence that activates directly through Microsoft's servers and stays with you forever. You get BitLocker full-disk encryption to protect sensitive data, Remote Desktop for accessing your PC from anywhere, Windows Sandbox to safely run untrusted apps in an isolated environment, Hyper-V virtualisation for running virtual machines, and enhanced group policy controls for IT management. The overhauled interface, with Snap Layouts and improved taskbar, makes multitasking faster than ever. One key, instant delivery, lifetime activation — backed by our full guarantee.
One-time payment. No subscription. No hidden fees.
- BitLocker encryption
- Hyper-V virtualisation
- Remote Desktop host
- Microsoft Entra ID join
About This Product
Windows 11 Pro is the most capable Windows OS ever made — built for businesses, power users, and anyone who demands the best. Unlike grey-market OEM keys tied to dead hardware, this is a genuine retail licence that activates directly through Microsoft's servers and stays with you forever. You get BitLocker full-disk encryption to protect sensitive data, Remote Desktop for accessing your PC from anywhere, Windows Sandbox to safely run untrusted apps in an isolated environment, Hyper-V virtualisation for running virtual machines, and enhanced group policy controls for IT management. The overhauled interface, with Snap Layouts and improved taskbar, makes multitasking faster than ever. One key, instant delivery, lifetime activation — backed by our full guarantee.
Every key sold by EvelopKeys is sourced through legitimate Microsoft volume licensing programmes. Your key activates directly against Microsoft's own servers — no third-party tools, no grey-market workarounds. You'll receive a genuine licence that entitles you to use the software legally and receive Microsoft's official updates.
After purchase, your key arrives by email in under 30 seconds. If it ever stops working — for any reason — we replace it for free within the Lifetime guarantee period. No questions asked.
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What's Included
Licence Key
Your unique 25-character product activation key
Instant Email Delivery
Delivered to your inbox in under 30 seconds
Activation Guide
Step-by-step instructions included with every order
Support Access
24/7 live support if you need any help activating
Lifetime Replacement Guarantee
If your key doesn't work, gets deactivated, or has any issue within Lifetime of purchase, we replace it instantly — free of charge. No forms, no back-and-forth. Just contact support and your new key is sent within minutes. Over 1,000+ customers trust us because we actually stand behind what we sell.
System Requirements
| Component | Requirement |
|---|---|
| Processor | 1 GHz or faster with 2+ cores on a compatible 64-bit processor |
| RAM | 4 GB minimum (8 GB recommended) |
| Storage | 64 GB or larger storage device |
| Firmware | UEFI, Secure Boot capable |
| TPM | Trusted Platform Module (TPM) version 2.0 |
| Display | High definition (720p) display, 9" or greater monitor, 8 bits per colour channel |
| Internet | Required for setup and activation |
Requirements sourced from official Microsoft documentation. Always check microsoft.com for the latest specs.
Customer Reviews
Activated first try — brilliant
Bought the key at 11pm when I was rebuilding my PC. Key came through in about 20 seconds, activated straight away on the Microsoft servers. No issues whatsoever. Saved about £170 vs buying through the Microsoft Store.
Genuinely the easiest way to get Windows
Was skeptical at first about buying a key this cheaply, but it activated perfectly through Settings. Got my invoice, the key, and a guide all in the same email. Support replied within minutes when I had a question about which version to buy.
Works great, fast delivery
Third time buying from EvelopKeys — Windows and Office for my home office builds. Never had a single issue. Keys are always genuine and come through in seconds. Won't bother buying anywhere else.
All good, minor confusion on my end
Key worked perfectly. I had a brief moment of confusion about entering it correctly (my fault for rushing) but support cleared it up in minutes. Would definitely buy again.
Proper genuine key, none of that KMS stuff
As an IT tech I was careful — confirmed it activated via Microsoft's own servers, SLUI shows genuine status, and Windows Update works fine. This is a real retail/OEM key, not grey market rubbish. Recommended.
All reviews are from verified purchasers. We don't filter or remove negative reviews — what you see is our real record.
Frequently Asked Questions
Yes. All keys sold by EvelopKeys are genuine Microsoft licence keys that activate directly against Microsoft's own servers. When you activate, Windows/Office contacts Microsoft's activation servers to verify your key — no third-party tools or workarounds involved. You receive a legally valid licence.
Still have a question?
Our support team replies in minutes, 24 hours a day.
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Windows 10 Pro remains the most battle-tested, widely deployed operating system on the planet — and for good reason. For businesses running hardware that doesn't meet Windows 11's TPM 2.0 requirements, Windows 10 Pro is the smart, stable choice. You get BitLocker encryption for securing sensitive company data, Remote Desktop for IT support and remote work, Hyper-V virtualisation for running virtual machines, Windows Hello biometric login, and full domain join support for enterprise network management. Extended support runs until October 2025, making this a fully supported OS for the foreseeable future. Permanent retail licence, activates instantly through Microsoft's servers, works on any compatible PC.
Windows 11 Home
Windows 11 Home delivers the complete, modern Windows experience for everyday users who want everything to just work. With its redesigned Start menu, Snap Layouts for effortless multitasking, and seamless Microsoft Store integration, it's the smartest home OS Microsoft has ever shipped. DirectX 12 Ultimate makes it the best Windows for gaming, with features like Auto HDR and DirectStorage for dramatically faster game load times. The integrated Microsoft Teams lets you call and chat without extra installs. This is a genuine OEM retail key — activate once, and it's permanently licensed to your PC forever. Instant delivery, no subscription, no nonsense.