Genuine Microsoft
Keys. Guaranteed
Forever.
Cheap keys get blacklisted. Ours don't. Genuine retail licences that activate once and work forever — or we replace them free.
Windows 11 Pro
Retail / 1 PC — Lifetime Activation
Why Smart Buyers Don't Always Buy the Cheapest Key
“The difference between a £4 key and a £25 key isn't the software. It's the guarantee.”
✕Cheap key sites (£3–6)
- ✕Keys from unknown, unverified sources
- ✕No guarantee when key stops working
- ✕Zero support after purchase
- ✕Risk of blacklisted keys
- ✕You're on your own if activation fails
- ✕Often need to repurchase within months
✓EvelopKeys (£12.99–£129.99)
- ✓Genuine retail keys, authorised distributors
- ✓Lifetime replacement guarantee — forever
- ✓Real humans respond within 1 hour
- ✓99.8% first-try activation success rate
- ✓30-day money-back, no questions asked
- ✓Buy once. Guaranteed to work forever.
1,000+ customers chose certainty over cheap. 4.9★ average rating.
Genuine Microsoft Licences
Guarantee period refers to our key replacement policy. Licences are permanent once activated.
Save More, Activate Once
Everything you need in one purchase. Guaranteed to work.
Windows 11 Pro + Microsoft 365 Personal
- ✓Windows 11 Pro — Retail / 1 PC / Lifetime
- ✓Office 2021 Pro Plus — Full suite included
- ✓Both keys delivered in under 30 seconds
£46.98 separately
You save £3.99
Ultimate Windows + Office Bundle
Save £7.99
Get Your Key in 4 Simple Steps
From purchase to activation in minutes. No waiting, no hassle.
Choose Your Product
Browse genuine Microsoft software licenses. Select the product that fits your needs and add to cart.
Complete Checkout
Enter your email and complete secure payment. 256-bit SSL encryption on every transaction.
Receive Your Key
Your licence key lands in your inbox within 30 seconds of payment. Automatic. 24/7.
Activate & Enjoy
Follow the simple activation steps. Your software is ready — with a lifetime guarantee behind it.
In Plain English
Here's why you can trust us.
Lifetime Key Guarantee
If your key ever stops working — today, next year, or in 5 years — we replace it immediately. No questions, no expiry. We've never refused a valid replacement.
Genuinely Genuine Keys
Genuine Microsoft retail licences from authorised distributors. Activates through Microsoft's own servers. Not OEM. Not grey market. Retail.
Real Humans, Real Support
Email info@evelopkeys.com and a real person responds within 1 hour. Not a bot. Average reply time: 23 minutes.
Our Promise: If your key ever stops working — today, next year, or in 5 years — we will replace it immediately, free of charge. No expiry on our guarantee. Ever.
The Smarter Way to Buy Microsoft Software
We've helped over 1,000+ customers get genuine Microsoft software without overpaying. Here's what makes us different.
Genuine Microsoft Keys
Sourced from authorized distributors. No grey market, no fakes — legitimate licenses backed by Microsoft.
Instant Email Delivery
Your licence key hits your inbox within seconds of payment. Available 24/7, 365 days a year.
Up to 85% Savings
The exact same genuine Microsoft key for a fraction of retail cost. No subscription, no catch.
Expert Support Team
Real humans, not bots. Response within 1 hour — help with activation or anything else.
Lifetime Activation Guarantee
If your key ever stops working, we replace it. No questions asked.
Secure Checkout
256-bit SSL encryption. Payment processed through Stripe. Your data is never stored by us.
Trusted by Thousands
"Bought 15 Windows 11 Pro licenses for our office. All activated without issues. Delivery was instantaneous and support was incredibly helpful."
"Skeptical at first, but this was the easiest software purchase I've ever made. Got my Office 2021 key in less than a minute, activated on the first try."
"Third time ordering. Windows 10 Pro for my workshop — all 5 keys worked perfectly. Fast, reliable, customer service actually responds."
"Needed Microsoft 365 for my dissertation. Got it for a fraction of the official price. Setup was smooth, activation email was clear."
"Bought a £5 key elsewhere. Stopped working after 4 months. Found EvelopKeys, activated first try. The lifetime guarantee is what sold me."
"Tried cheap key sites. Half activate, half don't. With EvelopKeys I've bought 23 licences across two companies. Every single one worked."
Frequently Asked Questions
Everything you need to know before buying.
Cheap keys are typically sourced from grey markets or volume licensing agreements that don't allow individual resale. They often work initially, then get flagged and deactivated by Microsoft. Our keys are genuine Microsoft retail licences from authorised distributors. You're paying for the certainty that it will keep working — and our lifetime guarantee that if it ever doesn't, we replace it free.
Ready to Save up to 85%?
Join over 1,000+ customers. Instant delivery, guaranteed activation.
Every key comes with our lifetime guarantee — if it ever stops working, we replace it free. No questions. No expiry.