Some Office 2019, Office 2016, and Office 2013 products come with a product key. If yours did, before installing Microsoft 365 for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup. Redeeming your key is what links your account with Microsoft 365 so you only have to do this once.

Select a different account. You have multiple accounts. Choose the account you want to sign in with. Manage your subscription. Applies ToOutlook.com. You can view or renew your subscriptions at account.microsoft.com. Learn more.

Cast to a display from a Windows PC. You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.

登录并下载 Microsoft 365. 转到 Microsoft 帐户仪表板， 如果尚未登录，请选择“ 登录 ”。. 使用与此 Microsoft 365 版本关联的 Microsoft 帐户登录。. 忘记了帐户详细信息？. 请参阅 我忘记了用于 Office 的帐户。. 从“概述”页中选择“ Office 应用 ”，在该页面上找到要 ...

How codes convert when redeeming for Game Pass Ultimate or Game Pass Standard. With Game Pass Ultimate or Game Pass Standard, you can still redeem codes for other subscriptions that are included as benefits of your current subscription.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Learn more about our Xbox subscription refund policy. You can receive a refund within 30 days of your initial purchase or before your first recurring billing date (whichever is sooner) by canceling your subscription in the steps that are outlined in the section “Canceling a subscription.”.

Describe your problem, and we'll provide self-help or connect you to the most appropriate support, which may include chat or request a call — we’ll call you, so you don’t have to wait. For even faster help, search for your topic on our site. Get help.

激活 Microsoft 365 或非订阅版本的 Office. 当启动未激活的 Microsoft 365 应用时，系统将提示登录到 Microsoft 365。. 请务必使用用于购买或订阅 Microsoft 365 的 Microsoft 帐户或工作或学校帐户进行登录。. 注意: 如果新设备上预安装了 Microsoft 365，请参阅 激活新 Windows 设备上 ...

Reset or change a password, Sign in to Microsoft 365, or Switch the account you're signed in with. Contact your admin who can retrieve the username and reset the password for your work or school account. Open Word, Excel, or PowerPoint app to see your username.