We've put together this article to describe fixes for the most common problems. Your Azure Active Directory (Azure AD) organization can turn on two-step verification for your account. When two-step verification is on, your account sign-in requires a combination of the following data: Your user name. Your password.

You can set up an authenticator app to send a notification to your mobile device or to send you a verification code as your security verification method. You aren't required to use the Microsoft Authenticator app, and you can select a different app during the set up process.

Symptom. When you're away from home and send an email message using your home email account, your email message might be returned with a 550, 553, or relay-prohibited error message. The same situation could occur when you're away from your office and try to send an email message using your work email account.

运行 设置 > 更新&安全 > Windows 安全中心 > 设备安全性. 如果在此屏幕上未看到 “安全处理器 ”部分，你的电脑可能具有已禁用的 TPM。. 有关详细信息 ，请参阅如何启用 TPM ，或检查电脑制造商的支持信息以获取说明。. 启用 TPM。. 如果能够启用 TPM，请完成下一 ...

Reduce background noise in Microsoft Teams meetings. When your mic is turned on in a Teams meeting or call, background noise around you—shuffling papers, slamming doors, barking dogs, and so on—can distract others. Teams offers three levels of noise suppression to help keep meeting participants focused on the following platforms: the Teams ...