Trying to find 365 product key

WAYNE STINE 0 Reputation points
2026-01-23T22:39:42.0366667+00:00

How do I find my product key so that I can install 365 on another computer?

Microsoft 365 and Office | Install, redeem, activate | For home | Windows
0 comments No comments
{count} votes

2 answers

Sort by: Most helpful
  1. Stefan Blom 332.9K Reputation points MVP Volunteer Moderator
    2026-01-23T22:44:59.5366667+00:00

    As Marcin Policht said, you don't need a product key. On the new PC, you install from your associated Microsoft account at https://account.microsoft.com/services .

    P.S. It is in fact impossible to reuse a product key. After the initial setup, it becomes permanently associated with the Microsoft account you made use of in the process.

    0 comments No comments

  2. Marcin Policht 77,660 Reputation points MVP Volunteer Moderator
    2026-01-23T22:42:44.7033333+00:00

    You don't need the product key to install MS 365 on another computer - simply follow https://support.microsoft.com/en-us/office/download-install-or-reinstall-microsoft-365-or-office-2024-on-a-pc-or-mac-4414eaaf-0478-48be-9c42-23adc4716658

    If you already redeemed a product key, reinstalling the apps, or you have an assigned license through work or school, you can skip ahead and go to the section sign in to download and install Microsoft 365 or Office.

    As per https://learn.microsoft.com/en-us/answers/questions/5204492/how-to-add-another-pc-to-microsoft-365

    "With Microsoft 365, you can install Office on all your devices and sign in to Office on five devices at the same time. This includes any combination of PCs, Macs, tablets, and phones."


    If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

    hth

    Marcin

    0 comments No comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.