Microsoft Home and Business license broke in about a year and no support

An Office Home & Business 2021 perpetual license has no subscription expiration, so first verify that each purchase remains associated with the correct Microsoft account and reactivate the affected PC from that entitlement.

“Perpetual” means continued usage rights for that purchased version; it does not guarantee indefinite updates, compatibility, or technical support. Office 2021 reached end of support on October 13, 2026, but reaching that date does not itself convert the license into a subscription or intentionally deactivate it.^1^ ^2^

1. Verify the affected license and account

On the affected PC:

1. Open Word and select File > Account.
2. Under the product name, note the address shown after Belongs to.
3. Sign in to the Microsoft Services & subscriptions page using that same account.
4. Confirm that Office Home & Business 2021 appears.
5. Return to Word, sign out of any incorrect account, restart Word, and sign in with the account associated with that purchase.

For Office 2021, the associated Microsoft account normally replaces the product key for activation and reinstallation.^3^

If the purchase is missing, also check any other personal Microsoft accounts that could have been used when redeeming it. Do not redeem the original key again: an “already used” message normally means it has already been attached to an account.^4^

2. If both purchases were installed from the same account entry

This branch applies only if both licenses are under one Microsoft account and the same Install entry was used on both PCs. Microsoft documents that this can install the same unique license on both computers, causing activation to fail on one; the affected computer then needs the other license/key.^5^

First ensure that the account page exposes the separate product keys—or that the purchase supplied them. Do not remove the installed key until the unused full key is available.

Open Command Prompt as administrator. For 64-bit Office, or 32-bit Office on 32-bit Windows:

cscript "C:\Program Files\Microsoft Office\Office16\OSPP.VBS" /dstatus
cscript "C:\Program Files\Microsoft Office\Office16\OSPP.VBS" /unpkey:LAST5
cscript "C:\Program Files\Microsoft Office\Office16\OSPP.VBS" /inpkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

For 32-bit Office on 64-bit Windows:

cscript "C:\Program Files (x86)\Microsoft Office\Office16\OSPP.VBS" /dstatus
cscript "C:\Program Files (x86)\Microsoft Office\Office16\OSPP.VBS" /unpkey:LAST5
cscript "C:\Program Files (x86)\Microsoft Office\Office16\OSPP.VBS" /inpkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

Replace LAST5 with the final five characters reported by /dstatus, and replace the placeholder with the unused key. If your Office 2021 purchase is account-based and no separate keys are available, do not use this method; reinstall from the correct account instead.

3. Repair a license that is present but will not activate

Perform these non-destructive checks in order:

1. Windows Settings > Time & language > Date & time: enable automatic date, time, and time zone.
2. Close Office. Search for Word from Start, right-click it, select Run as administrator, approve the prompt, and retry activation.
3. In Word, select File > Account > Update Options > Update Now.
4. Open Control Panel > Programs > Programs and Features and search for “Office.” If multiple Office editions are installed, uninstall the edition not being used and restart.
5. If only the intended edition remains, select it, choose Change, and run Online Repair.

Incorrect time settings, permission problems, duplicate Office installations, and damaged installation data are documented activation-failure paths.^6^

If repair fails, uninstall Office and reinstall Office 2021 from the Microsoft account dashboard containing the purchase; opening Word afterward should start activation.^7^

4. Escalate a missing entitlement separately

If the purchase is absent from every likely account, contact Office support and request an activation or purchase-entitlement review, rather than general Office 2021 technical troubleshooting. Provide:

• Receipt and order number
• Original product-key card or packaging, if applicable
• The affected Microsoft account
• Screenshot of File > Account
• Exact activation message and error code
• Previous support case number

An exact error matters: for example, 0x80070005 has a separate documented remedy, while telephone-activation failures use Microsoft’s Product Activation Portal.^8^ ^9^

References

1. Office 2021 and Office LTSC for Windows and Mac FAQ | Microsoft Support
2. What products are included in Microsoft 365 | Microsoft Support
3. Using product keys with Microsoft 365 | Microsoft Support
4. Where to enter your Office product key | Microsoft Support
5. [Command line](https://support.microsoft.com/microsoft-365-activation-licensing/office-install/change-your-office-product-key)
6. Unlicensed Product and activation errors in Office | Microsoft Support
7. Download and install or reinstall Office 2021, Office 2019, or Office 2016 | Microsoft Support
8. Office error code 0x80070005 when activating Office | Microsoft Support
9. "Telephone activation is no longer supported for your product" error when activating Office | Microsoft Support