If Office activation fails, you'll see Unlicensed Product or Non-commercial use / Unlicensed Product in the title bar of your Office apps, and most features of Office are disabled. To restore all features of Office, you'll need to fix the problem that's causing activation to fail.

How to spot a "fake order" scam. A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money ...

If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.

For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

对于一次性购买的 Office，例如 Office 家庭和学生版 、 Office 小型企业版 或 Office 专业版 ： 只能在一台计算机上安装这些非订阅版本的 Office。 但是，如果遇到硬件故障或购买新计算机，可以将 Office 转移到属于你的另一台计算机。

Office 2021 and Office LTSC 2021 are the next perpetual releases of Office. They include improvements over Microsoft Office 2019 and earlier versions of on-premises Office. For more information, see the following frequently asked questions.

Press the Xbox button on your controller to open the guide, and then go to Profile & system > Settings > Account > Subscriptions. Select the subscription that you want to manage. From here, you can view your plan, expiration date, billing history, subscription status, and change how you pay.

Block or unblock senders in Outlook. You can block messages from specific email addresses or domains from reaching your inbox. When you add an email address or domain to your blocked senders list, Outlook automatically moves messages from that sender to the Junk Email folder.

在 web 上取消 Xbox 訂閲. 若要取消或關閉週期性計費，以及從行動裝置或桌面瀏覽器檢查退款資格: 請前往 [服務與訂閱]，並使用當初購買訂閱時所用的 Microsoft 帳戶來登入。. 請務必使用該帳戶。. 服務與訂閱. 尋找您的訂閱，然後選取 [管理]。. 請注意，如果您 ...

To find a customer service phone number in your country, please click a region and find your country. Note: Support cases for Surface devices may only be initiated online.