Microsoft 365 and Office | Install, redeem, activate | For home | Windows
Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
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I paid for microsoft 365 personal in February 2026. Last week my computer died and I purchased a new one. I need the license key from my purchase of Microsoft 365 to use with my new computer
Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
When you first installed and activated Office that licence should have become associated to your Microsoft Account as a digital licence online and it is from there that you can re-install Office without the need for a product key: