In Word, you can insert mathematical symbols into equations or text by using the equation tools. On the Insert tab, in the Symbols group, click the arrow under Equation, and then click Insert New Equation.

尝试在 Windows 设备上安装、更新或启动 Xbox Game Pass 游戏时看到以下错误代码，并被定向到游戏服务的 Microsoft Store 页：

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If your gamertag uses Latin-based characters, it will show the Latin alphabet equivalent (ö will appear as o, for example). If your gamertag uses non-Latin-based characters, your previous gamertag will continue to appear for older, classic experiences, such as some games and Xbox websites, while your new gamertag will appear on modern experiences, such as your Xbox console and the Xbox apps ...

A Windows product key is a 25-character code used to activate Windows. It looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. Locate your product key for Windows 10 or Windows 11

If your PC was repaired or rebuilt, it's possible that a different version of Windows was installed. Or, if a different product key was used for your PC during repair, that key might have been used on more PCs than allowed by the Microsoft Software License Terms.

This article describes the Microsoft .NET Framework 4.7 offline installer for Windows 7 Service Pack 1 (SP1), Windows 8.1, Windows 10 Anniversary Update (Version 1607), Windows Server 2016, Windows Server 2008 R2 SP1, Windows Server 2012, and Windows Server 2012 R2.

If you're trying to play a disc-based game, insert the game disc into the Xbox. If you bought and installed a game or app from the Microsoft Store on your Xbox console, sign in to your Xbox account.

Without a secure network connection, you won’t be able to join a party chat or play some multiplayer games.

The notification area is located at the right end of the taskbar. It contains icons you might find yourself selecting or pressing pretty often: battery, Wi-Fi, volume, Clock and Calendar, and action center.