What is my Product Key?

Anthony Jackowski 0 Reputation points
2026-09-07T22:35:10.96+00:00

I just had my computer wiped clean and can't locate my Product Key for Microsoft 365. Can you help?

Microsoft 365 and Office | Install, redeem, activate | For home | Windows
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  1. Stefan Blom 354.5K Reputation points MVP Volunteer Moderator
    2026-09-07T22:45:04.7333333+00:00

    To reinstall a Microsoft product you purchased earlier, you don't need the product key and, in fact, it isn't possible to reuse a product key if you have already redeemed it at https://setup.office.com .

    Instead, sign in to your account at https://account.microsoft.com/services and reinstall from there.

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