KB4023057: Update Health Tools—Windows Update Service components
Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.
Excel specifications and limits - Microsoft Support
Workbooks with the "Allow changes by more than one user..." setting enabled. If the Allow changes by more than one user... setting is on for a workbook, then the following information applies. This setting is accessible by clicking the Review tab > Share Workbook.Note that in newer versions of Excel, the Share Workbook button has been hidden. To unhide it, click File > Options > Quick Access ...
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
PowerPoint の Copilot を使用して新しいプレゼンテーションを作成する - Microsoft サポート
ニーズに合わせてプレゼンテーションを編集したり、Copilot にスライドを追加するよう依頼したり、新しいプレゼンテーションからやり直したりして、より詳細な情報を含めるようプロンプトを絞り込みます。 たとえば、「チーム ビルディングの例を含むハイブリッド会議のベスト ...
Applies To: PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint for iPad
Add or invite people outside your org to a chat in Microsoft Teams
Add participants to an existing group chat. You may only add external access participants to existing or ongoing chats that already include at least one external access participant.
Applies To: Microsoft Teams
What is a Microsoft account? - Microsoft Support
What is a Microsoft account used for? You need a Microsoft account to sign in to your Windows pc, Xbox console, or any of Microsoft’s products and services, including Office, Outlook.com, OneDrive, Xbox Live, Microsoft 365, Family Safety, Skype, Bing, Microsoft Store and MSN.
Applies To: Microsoft account dashboard
About Power Query in Excel - Microsoft Support
With Power Query (known as Get & Transform in Excel), you can import or connect to external data, and then shape that data, for example remove a column, change a data type, or merge tables, in ways that meet your needs. Then, you can load your query into Excel to create charts and reports.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
SUBTOTAL function - Microsoft Support
This article describes the formula syntax and usage of the SUBTOTAL function in Microsoft Excel.. Description. Returns a subtotal in a list or database. It is generally easier to create a list with subtotals by using the Subtotal command in the Outline group on the Data tab in the Excel desktop application. Once the subtotal list is created, you can modify it by editing the SUBTOTAL function.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
How to use the PC Health Check app - Microsoft Support
Note: If a compatibility issue has been identified on your device that would disrupt your experience using Windows 11, we will temporarily delay your upgrade until the issue is resolved.Compatibility safeguard holds help ensure you have the best experience possible when upgrading and your productivity is not disrupted if critical apps or drivers are not yet compatible.
Microsoft Store & billing help
Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.
打开或关闭 Windows 安全中心 - Microsoft 支持
当在新设备中首次启动 Windows 10 时,设备上已安装的防病毒保护程序即是你的默认安全应用。但是,Windows 安全中心已预安装并可随时使用。