How to make sure my purchased office 2021 which can be transformed to the other PC

请注意，这是一个英语问答论坛，帖子应使用英语。我看到你同时使用了英语和繁体中文——我将根据你用繁体中文的描述进行回复。如果你希望得到英文回答，请随时告知。此回复为自动翻译，可能包含轻微的语法错误或不寻常的表述。感谢你的理解

您好，KC

最簡單的檢查方法通常是透過 Office 關聯的帳戶或購買記錄，而不是在 Word 或 Excel 內部進行檢查。如果 Office 2021 已關聯到該帳戶或購買記錄，這通常表示它可以在另一台電腦上重新安裝。

您可以嘗試以下建議：

登入您的 Microsoft 帳戶儀表板或 服務與訂閱頁面，尋找帶有「安裝」按鈕的 Office 2021。如果它出現在那裡，則表示許可證已關聯到該 Microsoft 帳戶。

如果沒有出現，請嘗試您首次兌換金鑰時使用的其他 Microsoft 個人帳戶。如果 Office 未列出，則可能已關聯到其他帳戶。

如果您是從 Microsoft Store 購買的 Office，請查看訂單歷史記錄。一次性購買記錄可能會顯示在那裡，您可以打開「安裝 Office」查看產品金鑰。

如果您仍然保留產品金鑰卡或電子郵件，請在 office.com/setup 上輸入金鑰。如果網站提示金鑰已被使用，通常表示該金鑰已關聯到某個 Microsoft 帳戶，因此您應該使用該帳戶進行安裝。

如果新電腦僅顯示試用版介面，建議您忽略試用版，並使用您購買 Office 時關聯的帳戶登錄，或安裝您先前購買的 Office 一次性版本。

感謝您耐心閱讀，希望這些資訊對您有所幫助。 

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注意：若需接收本討論串相關電子郵件通知，請依循[我們的文件指南]步驟啟用郵件通知功能。 

Hi, you have not said which version of Microsoft Office 2021 you have, particularly if you are referring to Microsoft Office Professional Plus 2021? If you have Office Home and Student 2021, Home and Business 2021, or Office Professional 2021 (not Pro Plus). You can move your Office to another computer after uninstalling it on the old computer. FIRST, you need to sign into Services & Subscriptions of the Microsoft Account associated with your Office. That is the Microsoft Account that you used to purchase your Office from Microsoft Store, or used with a Product Key purchased from a third party vendor. Here is a direct link: https://account.microsoft.com/services You should see an Install link for your Office.

• Uninstall Office from the original computer.
• On the new computer, sign in to your My Account page and click Install. After you finish installing, you may be asked to activate Microsoft Office over the phone.

For Office 2021 one-time purchase (such as Office Home & Business 2021, Home & Student 2021, or Professional 2021), transfer to another PC is allowed under these conditions:

1. The license type must be a one-time purchase retail license (not a volume license, trial, or Microsoft 365 subscription).
2. It can be installed on only one PC at a time.
3. It can be transferred to another computer that belongs to the same owner, but not more than once every 90 days, except in case of hardware failure.
4. When transferring, Office must be removed/uninstalled from the original PC and no copies may be retained.
5. After installing on the new PC, activation may need to be done by telephone if online activation reports that the maximum number of activations has been reached.

To confirm transfer rights for a specific Office 2021 license:

1. Open any Office app (for example, Word) on the current PC.
2. Go to File > Account > About [program name] > View the Microsoft Software License Terms.
3. Review the transfer section in the Software License Terms (for Office 2019/2016 it is section 3. Transfer to a Third Party; Office 2021 uses similar terms). This will state whether transfer to another device is allowed.

If located in the European Economic Area (EEA) and needing to transfer the license to another person (not just another PC), contact Microsoft customer support as described in the article. Identity and license ownership must be verified, and the new owner’s email provided so the license can be reassigned.

References:

• Transfer your Office license to another device or another person
• Activate Office after reinstalling or installing on a different device