Settings —□✕

System › Activation

Windows 11 ProEdition

Activation state Not active

Change product key Change

Windows is activated Activated online with Microsoft's servers

1Open Settings › System › Activation
2Change product key, type your key
3Click Activate
4Activated in seconds

Best Sellers, Windows

Windows 10 Pro OEM Online Key

(1 review)

$6.99

Microsoft Store price: ~~$199.99~~ · you save 96%

Genuine Windows 10 Pro at the lowest price. Permanently tied to this machine — every Pro feature, no transfer rights. Windows 10 still activates and works normally; Microsoft stopped releasing new updates in October 2025.

Choose how you activate

Phone activation · Windows 10Cheapest. Free Confirmation ID from our Get CID page — no call. $5.49 View

Online key · Windows 10Easiest. Enter the key and it activates over the internet. $6.99 Selected

What happens after you pay

Your key appears on screen and in your email within seconds.
A step-by-step activation guide comes with your key.

Watch how activation works (15 sec)

Genuine Microsoft license Personal support chat 30 days to activate — guaranteed Secure checkout by Stripe

SKU: KL-WIN10-PRO-OEM Categories: Best Sellers, Windows Tags: OEM, Online Key, Pro, Windows 10 Brand: Microsoft

Activation Online — enter the key and it activates

License One-time purchase — permanent

Devices 1 PC

Transfer Stays with the first PC it activates on

Warranty Activate within 30 days — free replacement if it doesn't work

Delivery Instant to a few minutes, depending on demand and stock — on your order page

Best for: Older PCs that can’t run Windows 11, where you need Pro features and want the lowest possible price — and you’re not planning to switch hardware.

Why is OEM cheaper?
OEM keys are permanently tied to the first PC they activate on. Same genuine Windows, same Pro features — the only difference is you can’t move it to a new machine. If you know you’ll stay on this hardware, OEM is the smarter buy.

Windows 10 vs 11?
Windows 10 still activates and works normally, but Microsoft stopped releasing new updates in October 2025. If your PC can run Windows 11 (needs TPM 2.0), Windows 11 Pro is the better long-term choice. Windows 10 OEM is the right call for hardware too old to qualify for Windows 11.

What Pro gives you:

BitLocker — full-disk encryption if your device is lost or stolen
Remote Desktop — control your PC remotely or let IT assist
Domain join — connect to business and school networks
Hyper-V — run virtual machines
Group Policy — business-grade settings management

1x Digital license key
Download link to official installer
Step-by-step activation guide
Invoice / proof of purchase

Processor: 1 GHz or faster processor or SoC
RAM: 1 GB (32-bit) or 2 GB (64-bit)
Storage: 16 GB (32-bit) or 32 GB (64-bit)
Graphics: DirectX 9 or later with WDDM 1.0 driver
Display: 800 x 600 resolution
Internet: Required for updates and activation

Purchase — Complete your order securely
Receive Key — Your key appears on your order page right after payment, and we email you a link. Click “Reveal key” to see it
Activate — Enter the key during product setup or in Settings > Activation

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Based on 1 review

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Verified Purchase

Jayson 2 weeks ago

Got it straight away and works fine

Add a Review

How this key works

Online: enter the key and Windows activates over the internet. Microsoft then remembers this PC (a digital license).

Reinstalling

Reinstall the same edition and connect to the internet — Windows reactivates by itself. If setup asks for a key, choose I don't have a product key.

New computer

No. An OEM key stays with the first PC it activates on — a new motherboard counts as a new PC. Choose a Retail key if you plan to move it.

Compare all key types — OEM, Retail, phone, Microsoft account →

Frequently Asked Questions

Yes. It's a genuine Microsoft product key that activates on Microsoft's own activation servers, covered by our 30-day activation guarantee.

Usually instantly, and at most a few minutes depending on demand and stock. Your key appears on your order page as soon as your payment is confirmed, and we email you a link to it. The key stays hidden until you click Reveal key.

No. Each product key activates one PC. OEM keys are permanently tied to one motherboard. Retail keys can be transferred — deactivate the old PC first, then activate on the new one.

OEM keys are tied to one motherboard permanently and cannot be transferred. Retail keys can be moved to a new PC by deactivating on the old one first. Retail costs more but offers hardware flexibility.

Send our support team your order number and a screenshot of the activation error. Most problems are an edition mismatch or a typo, and we'll help you fix it. If the key really is faulty, we send a free replacement within 24 hours — or a full refund if we can't replace it.

Yes. If you currently have Windows Home installed, you can enter a Pro key in Settings → System → Activation → Change product key. Windows will upgrade to Pro automatically.

Yes. Once activated, your PC receives all security updates and feature updates from Microsoft for as long as the product is supported.

If you have a Windows 10 key and your hardware meets Windows 11 requirements (including TPM 2.0), you can upgrade for free through Windows Update. Your license transfers automatically.