If you continue to experience issues signing in with your original profile, disable Windows Defender services: Open the Services app by typing services in the search box on the task bar and selecting it from the list of results. Then, find the Windows Defender Advanced Threat Protection and Microsoft Defender Antivirus services, right-click each of them, select Properties , and change Startup ...

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。

Certificate authority (CA) A certificate authority is an entity similar to a notary public.It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.

In Windows 10, action center is where you'll find your app notifications and quick actions—which give you quick access to commonly used settings and apps.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

When you use InPrivate tabs or windows, your browsing data (like your history, temporary internet files, and cookies) isn't saved on your PC once you're done.

Learn how to get your Xbox device serviced. Important Send in your device as soon as possible. If you don’t ship your device within 30 days of your request, your service order will be canceled, and the shipping label will no longer be valid.

Top of Page. Contacts (People) keyboard shortcuts. The People view is your address book in Outlook where your personal contacts are stored and where you can open any address book that has been set up for your organization. The People, Mail, and Calendar views work together so you can easily send mail to and schedule appointments with your most important people.

Microsoft Reflect helps you create impactful check-ins to gain insights into your learners' well-being and build a happier and healthier learning community, all through one easy-to-use app. By identifying your students' emotions, you can express fill their needs. Use emojis and pictures of emotion words to gauge how students feel.

2. Fill out the form using a recognized device and location. If possible, complete the form using a device you previously used to sign into your account and at a location where you commonly use that device and that we'll recognize, such as your home or office.