Install Office 2019, 2021, or 2024 (Retail) via office.com/setup

What you need

• Your 25-character product key — in your order confirmation email and under Orders in your Lizensa dashboard
• A Microsoft account (free)
• A PC running Windows 10 or 11

Step 1 — Redeem your key at office.com/setup

1. Go to office.com/setup and sign in with your Microsoft account (or create one).
2. Enter the 25-character product key exactly as shown, then select Next.
3. Confirm your region and language, then select Redeem.

Step 2 — Download and install

1. On the confirmation page select Install Office.
2. Run the downloaded Setup file and allow the installer to make changes.
3. Wait for "You're all set" — Office installs as Click-to-Run; no ISO is needed.

Step 3 — Activate

1. Open any Office app (for example Word).
2. Sign in with the same Microsoft account you redeemed the key with — Office activates automatically.

Notes

• This flow covers Office 2019 Home & Student / Home & Business, Office 2021 Home & Student / Home & Business, and Office 2024 Home / Home & Student / Home & Business.
• A retail key activates one device at a time; deactivate on the old device before moving it.
• The key is linked to your Microsoft account — reinstall any time from account.microsoft.com under Services & subscriptions.