How to use the PC Health Check app - Microsoft Support
PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC. How to open PC Health Check. In Windows, use Search on the taskbar to ...
Activate Office - Microsoft Support
Activate Microsoft 365 or a non-subscription version of Office. When you start an Microsoft 365 app that's not activated, you'll be prompted to sign in to Microsoft 365. Be sure to sign in using the Microsoft account, or work or school account, that you used to buy or subscribe to Microsoft 365.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Microsoft 365 admin, Project for Office 365
Redeem a gift card or code to your Microsoft account
Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.
Applies To:
Microsoft account dashboard
如何兌換禮品卡和代碼 | Xbox Support
兌換禮品卡與代碼，以購買 Xbox 並擴充您的 Xbox 訂閱。. 代碼的長度為 25 個字元 (包含數字和英文字母)，並採用 5x5 格式，即以五個字元為一組，共五組。. 代碼可以是您向 Microsoft 或信任的零售商購買的數位或實體卡片。. 如果您的帳戶有未付餘額，或是付款 ...
Finding your BitLocker recovery key in Windows - Microsoft Support
Windows 11 Windows 10. 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.
How to earn Microsoft Rewards points - Microsoft Support
How to earn Microsoft Rewards points. It’s easy to rack up Microsoft Rewards points and earn your way toward great rewards like gift cards, movies, games, nonprofit donations, and more. Stay signed in with your Microsoft account and you'll earn points for doing the things you already do.
Applies To:
Microsoft account dashboard
Upgrade Windows Home to Windows Pro - Microsoft Support
Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.
将工作或学校帐户添加到Microsoft Authenticator应用
若要使用凭据登录到工作或学校帐户来添加帐户：. 打开Authenticator应用，然后选择“+”按钮，然后点击 “添加工作或学校帐户 ”。. 选择“ 登录 ”。. 输入工作或学校帐户凭据。. 如果有临时访问通行证 (TAP) 可以使用它进行登录。. 此时，可能会被以下条件 ...
将Microsoft Authenticator应用设置为验证方法 - Microsoft 支持
将Microsoft Authenticator应用设置为验证方法. 可以按照以下步骤添加双因素验证和密码重置方法。. 首次设置此设置后，可以返回到 “安全信息 ”页来添加、更新或删除安全信息。. 如果在登录到工作或学校帐户后立即提示设置此设置，请参阅登录页提示文章中的 ...
激活 Windows - Microsoft 支持
激活 Windows 时遇到问题？. 首先，在“获取帮助”应用中尝试激活疑难解答。. 获取帮助可指导你完成解决大多数激活问题的正确步骤。. 打开“获取帮助”. 检查 Windows 激活状态. 首先需要查看 Windows 11 是否已激活并链接到你的 Microsoft 帐户。. 将 Microsoft 帐户链接 ...