Question 1

Is this a genuine Microsoft licence key?

Accepted Answer

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.

Question 2

How quickly will I receive my key?

Accepted Answer

Delivery is fully automated. In the vast majority of cases your key arrives by email within 30 seconds of payment. Occasionally it may take up to 5 minutes during high-volume periods. If you don't receive it within 10 minutes, check your spam folder or contact support immediately.

Question 3

What does the Lifetime guarantee cover?

Accepted Answer

Our Lifetime guarantee means if your key stops working, gets flagged, or has any activation issue within Lifetime of your purchase — we replace it for free. No questions asked. Simply contact support with your order number and we'll send a replacement within minutes.

Question 4

Can I use this key to reinstall Windows/Office in the future?

Accepted Answer

Yes. Your key is tied to your Microsoft account and/or hardware. If you need to reinstall, you can re-enter the same key or link it to your Microsoft account for digital activation. Retail licence holders can also transfer to a new PC — check the specific licence type for transfer rights.

Question 5

What if I enter the key wrong?

Accepted Answer

Product keys are 25 characters and not case-sensitive. Copy and paste from the email rather than typing manually to avoid errors. If you have trouble activating, our 24/7 support team will walk you through the process.

Question 6

OEM vs Retail — what's the difference?

Accepted Answer

OEM licences are tied to the specific PC they're first activated on and cannot be transferred. Retail licences can be moved to a new PC if you decommission the old one. The product page clearly states which type you're buying. Both are genuine Microsoft keys that activate normally.

Question 7

Does it include the Windows download/installer?

Accepted Answer

The key is the only thing you need to purchase — the Windows installer is free. You can download it directly from Microsoft's website at microsoft.com/software-download. We include a direct download link in your email along with the key.

Windows 11 Pro

Frequently Asked Questions