add Microsoft 365 to second home computer

To install Office on a second computer for yourself (assuming you are the person who pays for the subscription), just install from your associated account at https://account.microsoft.com/services . Subscription products that include the Office apps will always let you install on multiple devices.

If you have Microsoft 365 Family or Premium and you want to invite a second user (= family member) to install Office, follow the instructions at https://support.microsoft.com/en-us/accounts-billing/subscriptions/share-your-microsoft-365-subscription . The invited person will then have to accept the invite and install; for more, have a look at https://support.microsoft.com/en-us/accounts-billing/subscriptions/someone-invited-you-to-share-their-microsoft-365-subscription .

Hi Elaine,

Depends on the licence you have, is it single, family or business?

Follow https://support.microsoft.com/en-US/Office/lifecycle/officeinstall/download-install-or-reinstall-microsoft-365-or-office-2024-on-a-pc-or-mac

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hth

Marcin