Check if your Windows/Office key is genuine
Enter your Installation ID and your check code. We confirm, in seconds, whether Microsoft will activate your key.
The long number from the phone-activation screen — 9 groups of 7 digits. Type it, or upload a screenshot below and we’ll read it for you.
You get this after buying a Microsoft Key Checking Credit (₹84). It looks like KS-CHK-XXXXXXXX.
This credit pays for the check itself. You’re paying for the result — whether the key passes or not.
Checking your key with Microsoft…
Congrats — your key is Genuine
This key activates successfully with Microsoft. Save your Installation ID; if you still need to finish activation, use our Confirmation ID tool.
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Sorry — your key doesn’t appear genuine
Microsoft has blocked this key, so it won’t activate. Kindly contact the vendor you bought it from and ask for a replacement or refund.
Let’s try that again
That Installation ID didn’t come through cleanly. Double-check it’s 9 groups of 7 digits, entered exactly as shown on your screen, and try again. Your check code was not used.
How to find your Installation ID
slui 4 (with a space before the 4), and press Enter.
