Buy Windows 11 Pro OEM License — Lifetime

Name: Windows 11 Pro OEM License
Brand: Microsoft
SKU: cmrouisgt000oz0tvkgpxn7s3
Price: 5.99 TRY
Availability: InStock

Buy a Windows 11 Pro OEM licence and put Microsoft's newest professional operating system on your computer for life, with a single payment. An OEM licence is permanently registered to your motherboard: even after a full format it reactivates automatically on the same machine. Karınca Lisans delivers your key invoiced and 100% genuine, usually within 1–90 minutes by e-mail.

What Is a Windows 11 Pro OEM Licence?

An OEM (Original Equipment Manufacturer) licence registers the operating system permanently to a single computer. The key pairs with your motherboard on first activation, so when you format or reinstall Windows on the same machine it reactivates automatically. There is no subscription, no yearly renewal, no extra fee — pay once and use it for the life of your device. If you are not sure which edition fits you, see our guide Windows 11 Pro vs Home: the key differences.

OEM, MAK and Retail Licences Compared

For Windows 11 Pro we offer several licence types including OEM (this product), MAK and Retail — and the catalogue keeps growing. All of them are 100% genuine; the difference is the usage scenario:

Feature	OEM (this product)	MAK	Retail
Device binding	Permanently tied to the motherboard	Not permanently tied to a device	Tied to the user
Moving to another PC	Not transferable	Not transferable	Transferable
After a format	Reactivates automatically	May need reactivation	Easily reactivated
Validity	Lifetime	Lifetime	Lifetime
Price	Mid-range	Most economical	Premium
Best for	Keeping one PC for many years	A fast, economical solution	Frequent hardware upgrades

We examined all the details in our guide OEM vs Retail licence differences.

Windows 11 Pro Highlights

BitLocker device encryption: encrypts your drive end to end so your data stays safe even if the device is lost.
Remote Desktop (RDP) host: connect to your computer securely from other devices.
Hyper-V virtualisation: build virtual machines and test environments on Windows.
Group Policy and domain support: join corporate networks with central management.
Windows Update for Business: defer and control updates on your own schedule.

System Requirements

1 GHz or faster 64-bit processor with 2+ cores
4 GB RAM, 64 GB storage
TPM 2.0 and Secure Boot (UEFI) support
DirectX 12 compatible graphics, 720p display

Why Karınca Lisans?

Karınca Lisans is a Türkiye-based digital licensing platform serving thousands of individual and corporate customers. All our Windows 11 licences are sourced through official channels, every sale is invoiced, and keys can be verified on Microsoft activation servers. Delivery is by e-mail, usually within 1–90 minutes, and our WhatsApp support line is there for any setup questions. Faulty keys are covered by the refund guarantee stated on the product page. You can explore other licence options in the related products below.

Does an OEM licence survive a motherboard change?

The OEM key registers to your motherboard on first activation. Changing RAM, disks or the graphics card does not affect the licence, but it cannot be moved to a new motherboard. If you change hardware often, consider our MAK or Retail options.

Do I need to reactivate after formatting?

No. Because the OEM licence is paired with your motherboard, Windows reactivates automatically as soon as the same computer goes online after a reinstall.

How is it different from a MAK licence?

An OEM licence is permanently registered to one computer and reactivates automatically after a format; a MAK licence is more economical but is not permanently tied to the device. Both are genuine — the choice depends on how you use your computer.

How long does delivery take, and is it invoiced?

Your key is delivered by e-mail, usually within 1–90 minutes. Every sale is invoiced; corporate purchases are invoiced with your company details.

Is the key genuine?

Yes — 100% genuine, sourced through official channels and verifiable on Microsoft activation servers. Faulty keys are covered by the refund guarantee stated on the product page.

Can Windows 11 be installed without TPM 2.0?

Microsoft requires TPM 2.0 and Secure Boot for Windows 11. On unsupported machines an official installation is not recommended — our Windows 10 OEM licence is the safe alternative for older hardware.

Your licence key is 100% genuine and invoiced. The ordering, delivery and activation steps are below:

After your order, your key is sent to your e-mail (usually within 1–90 minutes).
On your computer open Settings → System → Activation.
Click "Change product key" and enter your key.
With an internet connection, activation completes in seconds and the key is registered to your motherboard.

For detailed setup instructions, see our Instructions for Use Library.

No reviews yet for this product — be the first to write one!