If you've received any reactions in the previous day or so, you'll get a digest email that summarizes the reactions you've received. You can unsubscribe from the digest email if you'd prefer not to receive it.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

Issues that are fixed in this update. The following issues are fixed for .NET Framework 4.7.2. SQL Server (SQL) Fixes an issue in which the .NET Framework API SqlConnection.ConnectionString property is used to set a null or empty connection string. In this situation, a Null Reference Exception (NRE) occurs when you use the API together with .NET Framework 4.7.2.

Make sure you have the latest updates on your Windows device. Press the Start button , then choose Settings.Go to Update & security (Windows Update on Windows 11), then select Check for updates.; Check your Game Bar settings. Press the Start button , then choose Settings.Go to Gaming > Game bar, then turn on Record game clips, screenshots, and broadcast using Game bar.

The CONCAT function combines the text from multiple ranges and/or strings, but it doesn't provide delimiter or IgnoreEmpty arguments. CONCAT replaces the CONCATENATE function.However, the CONCATENATE function will stay available for compatibility with earlier versions of Excel.

When you send this meeting request with Free/Busy set to Free, the event appears at the top of each day in the recipient's Outlook calendar — a visual reminder that doesn't block any of their own work time.. Manage your availability in your calendar. By default, when you add an item to your calendar or accept an invitation from someone else, the item is marked as Busy on your calendar:

If pressing the Connect button in action center doesn't find your device in Windows 10, here are some things to try:. Check action center to see if your Windows device supports Bluetooth. If it does, there'll be a Bluetooth button in action center. Make sure it's turned on.

These steps apply only to Office Professional Plus, Visio Professional, or Project Professional. Step 1: Start an Office app, like Word, Project, or Visio, depending on your purchase.. Step 2: In the Sign in to set up Office window, select I don't want to sign in or create an account (it's a small link at the bottom of the window).. Step 3: Enter your Office product key, without hyphens.

You can personalize the color or accent color for window title bars and borders, the Start button, or the taskbar. The Dark mode has colors that are designed to work well in a low-lit environment. This option is for the Start menu, taskbar, and action center.