Enter your institutional email address on the official Microsoft Education website to check your eligibility. 2. Microsoft 365 Online (Free for Everyone)

Microsoft provides free, cloud-based versions of its core applications.

If you absolutely do not want a subscription, buy . It is a one-time purchase per device (approx $450–$550 per PC). For 100 devices, you pay ~$50,000 upfront. No annual fees, but no feature updates.

Sent after a digital purchase from an authorized retailer or the Microsoft Store.

Microsoft only issues 25-character product keys for Office 365 when you buy a physical retail box or a digital voucher from a third-party retailer (like Amazon, Best Buy, or Walmart).

Sign in with the Microsoft account you want to associate with the subscription. Activate: If prompted, enter your 25-digit product key.

While you might use a product key to initially redeem a subscription purchased from a retail store, that key is permanently consumed upon first use. Ongoing activation is verified by logging into the software with your registered email and password.

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