Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Training: Watch these videos to help your school, work, or organization use Microsoft Teams to video conference, work remotely, and become proficient using Teams.

Learn how to add Teams to your Outlook meeting. Note: Up to 1,000 invitees can join a Teams meeting and interact by using chat, audio, and video. Invitees can also join a meeting that already has 1,000 participants (up to 10,000) as view-only attendees.

OneDrive Personal Vault provides an extra layer of security by using Two-Factor Authentication (2FA), which helps ensure only you can access your critical information. Microsoft 365 Basic, Personal, and Family subscribers previously could only store a small number of files in their Personal Vault.

You get 1 TB of cloud storage with a Microsoft 365 subscription, and can back up and share your files and photos with friends and family across all your devices. Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.

If you're a Microsoft 365 admin, you can use the Microsoft 365 admin center or Microsoft Graph PowerShell to add photos on behalf of users. For instructions, see Change user profile photos. Learn how to add your photo to Microsoft 365 so it appears in your profile.

If you're having problems with two-step verification on a personal Microsoft account, which is an account that you set up for yourself (for example, danielle@outlook.com), see Turning two-step verification on or off for your Microsoft account.

Use keyboard shortcuts to apply superscript or subscript. Select the text or number that you want. For superscript, press Ctrl, Shift, and the Plus sign (+) at the same time. For subscript, press Ctrl and the Equal sign (=) at the same time. (Do not press Shift.)

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

我们编写了这篇文章，以介绍最常见问题的修复方法。. Azure Active Directory (Azure AD) 组织可以为你的帐户启用双重验证。. 启用双重验证后，帐户登录需要以下数据的组合：. 您的用户名. 你的密码. 移动设备或手机. 双重验证比仅使用密码更安全，因为双重验证需要 ...