Settings —□✕

System › Activation

Windows 11 ProEdition

Activation state Not active

Change product key Change

Activate by phone Open

Windows is activated Activated by phone with your Confirmation ID

🔒keyslocker.com/get-cid

KEYS LOCKER Get your Confirmation ID Activation code (from your order email)

Installation ID

Get Confirmation ID

✓ Your Confirmation ID

284716930251471963228514660391114720593028847103

Copy

1Enter the key — 0xC004C008 is normal
2Close it, open Activate by phone, copy the ID
3Get your ID at keyslocker.com/get-cid
4Type it in — activated

Shop, Windows

Windows 10 Home OEM – Phone Activation Key

$3.49

Microsoft Store price: ~~$139.00~~ · you save 97%

Windows 10 Home OEM, activated by phone. The lowest-cost genuine Windows licence we stock, Confirmation ID included.

Choose how you activate

Phone activation · Windows 10Cheapest. Free Confirmation ID from our Get CID page — no call. $3.49 Selected

Online key · Windows 10Easiest. Enter the key and it activates over the internet. $6.50 View

What happens after you pay

Your key appears on screen and in your email within seconds.
You also get an activation code for your free Confirmation ID — no phone call needed.
A step-by-step activation guide comes with your key.

Watch how activation works (30 sec)

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

SKU: KL-WIN10-HOME-OEM-PH Categories: Shop, Windows Tags: Home, OEM, Phone Key, Windows 10

Activation By phone — free Confirmation ID included

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: a family PC or laptop that needs a genuine, permanent Windows licence at the lowest possible price.

This is the cheapest genuine Windows licence we sell. It costs less for two reasons: it is an OEM licence, so it stays with the computer it first activates on, and it activates through Microsoft’s phone service rather than the instant online check.

The activation, step by step.
Enter the key in Windows Settings. The online attempt fails with an error such as 0xC004C008, which is expected, and Windows then offers to activate by phone. Take the Installation ID it displays, paste it into our Get CID page along with your activation code, and type the Confirmation ID back in. Two minutes, no phone call.

What Home covers

The full Windows experience: Microsoft Store, Edge, Snap Layouts, widgets and Windows Hello sign-in
Device encryption on supported hardware, plus Microsoft Defender
Permanent activation — no subscription, no renewals

Home leaves out BitLocker management, Remote Desktop hosting, Hyper-V and domain join. If you need any of those, our Pro OEM phone key adds them for a little more.

Windows 10 vs 11?
Windows 10 still works normally, but Microsoft stopped releasing new updates in October 2025. For a long-term setup, Windows 11 is the right choice.

1x genuine 25-character Microsoft product key
1x activation code for your free Confirmation ID
Instant email delivery after payment
Step-by-step phone activation guide
Invoice / proof of purchase

Activation method: phone activation. Expect an online failure such as 0xC004C008 before the phone option appears.
Editions: Windows 10 Home. It will not activate Pro.
Licence type: OEM — tied to the first PC, not transferable.
Windows 10 hardware: 1 GHz CPU, 2 GB RAM (64-bit) and 32 GB storage.
Region: worldwide, any language.

Order — your key and activation code arrive by email within minutes.
Enter the key in Windows. The online attempt fails with an error such as 0xC004C008 — expected for this key.
Choose the phone option Windows then offers, and copy the Installation ID it shows.
Get your Confirmation ID at keyslocker.com/get-cid using your activation code.
Type it in and click Activate. Done, permanently.

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How this key works

Activated by phone: enter the key, choose Activate by phone, and get your Confirmation ID free and instantly on our Get CID page — no call needed.

Reinstalling

The Confirmation ID matches this installation. After reinstalling Windows or a major hardware change you will see a new Installation ID — just repeat the phone steps. Need another Confirmation ID for this key? Message us from your order page and we will issue it.

New computer

No. An OEM key stays with the first PC it activates on — a new motherboard counts as a new PC.

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.

Yes. Buy a Pro key and enter it in Settings, and Windows upgrades in place without reinstalling. Your files and apps stay where they are.

Because this key is issued for phone activation. The error, usually 0xC004C008, is the normal first step and Windows then offers the phone option.

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

Yes, as long as the installed edition is Home. Enter the key in Settings to replace the existing licence; there is no need to reinstall Windows.

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.