Free activation helper
Get Your Confirmation ID (CID)
Activate Microsoft products by phone — without calling. Enter your Installation ID and get a Confirmation ID in seconds.
Free
Instant
Works for Windows & Office
How it works
Four steps, about two minutes. Everything happens on the activation screen your PC already has.
1
Open the phone-activation screen
Press Win+R on the PC you want to activate, run the command below, then pick your country when Windows asks.
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For Office, use the activation wizard's “I want to activate the software by telephone” option instead.
2
Copy your Installation ID
The screen shows an Installation ID — 9 blocks of digits (A through H, plus one more). Write down or photograph all of them, in order.
3
Paste it into the tool below
Enter the Installation ID (and your product key, if the tool asks for it) into the form below and submit it. A Confirmation ID comes back in seconds.
4
Enter the Confirmation ID on your PC
Go back to the activation screen, type the Confirmation ID into the numbered boxes and click Activate Windows. Your product is now activated — no phone call needed.
Get your Confirmation ID
Paste your Installation ID into the tool below. If the frame does not load, open it in a new tab instead.
The Confirmation ID is generated by the linked Microsoft self-service activation tool at getcid.us, a third-party service. Keys24x7 does not process or store your Installation ID, and is not affiliated with Microsoft.
Frequently asked questions
What is an Installation ID?
The Installation ID is a long number — shown as nine blocks of digits — that Microsoft generates on your PC when you choose phone activation. It identifies that specific installation. The activation service turns it into a matching Confirmation ID, which you type back into the same screen to finish activating.
Why would I need phone activation at all?
Online activation can fail even with a perfectly valid key — after a hardware change, on a PC with no internet, behind a restrictive network, or when a retail key is being moved to a new machine. Phone activation is Microsoft’s official fallback path for exactly those cases. This page just saves you the actual phone call.
Which products does this work for?
Retail and phone-activation keys for Microsoft Windows (10 and 11, Home/Pro/Enterprise) and Microsoft Office (2016, 2019, 2021, 2024 and Project/Visio) — including the "Activate by Phone" products we sell. It does not work for volume/KMS activation, OEM keys locked to another motherboard, or Microsoft 365 subscriptions, which activate through your account instead.
What if the Confirmation ID is rejected?
A rejected CID almost always means the key itself is the problem: it has already been used on the maximum number of devices, or it is the wrong edition for the installed product (for example a Pro key on a Home installation). Reinstall or repair with the correct edition, then try again. If the key came from us, contact support with your order ID and a screenshot of the error and we will verify or replace it.
Is this free?
Yes. The tool is free to use and you do not need an account with us. The Confirmation ID is generated by the linked Microsoft self-service activation tool embedded below, which is operated by a third party — we provide the guidance and the page around it.
Need a genuine license?
Keys24x7 sells genuine retail and “Activate by Phone” keys for Windows, Office, Project and Visio — delivered to your inbox within minutes.