How does multifactor authentication work? Let's say you're going to sign into your Microsoft account or work or school account, and you enter your username and password.If that's all you need then anybody who knows your username and password can sign in as you from anywhere in the world!

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Outlook 2021 for Windows lets you better manage your inbox with the addition of new capabilities including Search at Top and Translator. If you're upgrading to Outlook 2021 for Windows from Outlook 2019, for Windows you'll still have all the features you're used to—and you'll notice a few new ones as well!

如果你的设备符合硬件规格，并且 Windows 11 版本已可供设备使用，则可以从 Windows 10 升级到 Windows 11。 如果你的现有 Windows 10 电脑运行的是最新版本的 Windows 10，并且满足 最低硬件规格要求 以运行 Windows 11，则你的电脑可以升级。 升级推出 ...

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

Get answers to all of your Microsoft Word questions. Find Word help, how-to articles, training videos, tutorials, and more.

新字体将显示在 Word 中的字体列表中。 下面是安装或管理字体的两种方法： 所有字体都存储在 C:\Windows\Fonts 文件夹中。 （可选）只需将字体文件从提取的文件文件夹拖动到此文件夹中即可添加字体。 然后，Windows 会自动安装它们。 若要查看字体的 ...

Internet Explorer からお気に入り、パスワード、およびその他のブラウザー データをすばやくインポートできます。 Microsoft Edge にできるだけシームレスに切り替えるには、Internet Explorer からデータをインポートし、保存したお気に入り、パスワード、およびその他の情報をすべて使用できるように ...

Symptoms. Some floating-point math library functions in the Visual C++ 2013 x64 C Runtime (CRT) do not correctly check whether certain AVX and FMA3 instructions are available before the functions try to use them.

计算机连接到投影仪且用户启动幻灯片放映 时，演示者视图显示在计算机屏幕上，投影仪屏幕上只显示幻灯片。 使用“演示者视图”，用户可在演示时查看备注，而观众只能看到幻灯片： 备注显示在右侧窗格中。 如果需要添加或删除某些内容，只需在文本框中单击即可进行编辑。