Microsoft アカウントで通常とは異なるアクティビティに関するメールを受け取った場合、または他のユーザーがアカウントを使用している可能性が心配な場合は、[最近のアクティビティ] ページに移動します。過去 30 日間に Microsoft アカウントにサインインしたすべての日時と共に、デバイス ...

Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

Create a group for your project or team. Create a PLC group in Outlook (Office 365 Education) A Professional Learning Community (PLC) group is a type of Microsoft 365 Group that provides a shared space for educators to use for collaboration.

Verwenden Sie Ihr Microsoft-Konto, um sich bei Microsoft-Diensten wie Windows, Microsoft 365, OneDrive, Skype, Outlook und Xbox Live anzumelden.

How to use the SUM function in Excel to add individual values, cell references, ranges, or a mix of all three.

Wirelessly connect your PC to a TV, projector, another PC, or other kind of external display that supports Miracast.

Get answers to questions about how indexing affects searches in Windows 10.

We'll describe three connection types for keyboards and mice. Follow the description that applies to your mouse or keyboard’s connection type.

Change your screen saver settings. Select the Start button, then go to Settings > Personalization > Lock screen, and select Screen saver settings.In the Screen Saver Settings window, choose a screen saver from the drop-down list.

Tìm hiểu cách cài đặt, cài đặt lại hoặc kích hoạt Microsoft 365 hoặc Office 2019 trên PC hoặc máy Mac.