Переустановите Microsoft 365 Если Microsoft 365 уже был изначально установлен и вам необходимо переустановить его на том же или новом устройстве, у вас уже должна быть учетная запись Майкрософт, связанная с вашей копией Microsoft 365.

在激活向导中，单击“我希望通过 Internet 激活软件”，然后按照提示进行操作。 需要激活 Office 才能确保你的 Office 程序完全正常工作。 如果安装时未激活，可稍后从 Office 应用程序中通过单击“文件”>“帮助”>“激活产品密钥”来激活它。 有关详细信息，请参阅激活 Office 2010 程序。

Why is the From button is missing? If you see the Send button, but don’t see the From button, the typical cause is that your Outlook profile contains only one email account. To view the From button, you'll need to add another email account.. If you have multiple email accounts, you can add the From button manually.Once you add the From button, you can't remove it unless you remove all but ...

Select Start > Settings > Personalization.The preview window gives you a sneak peek of your changes as you make them. In Personalize your background, you can select a picture, a solid color, or a slideshow of pictures you create.Or you can choose Windows spotlight to see a new image from around the world every day.

Repair programs in Control Panel. Select the Advanced options link under the name of the app (some apps don't have this option). On the page that opens, select Repair if it's available.If it isn't available or doesn't fix the problem, select Reset.

Use the Windows Quick Assist app to get help with a computer problem from family or friends or help them out. Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it).

培训：了解 Word 网页版，创建文档、添加图像并共享文件，以便与他人协作。 观看此视频，了解详细信息。 试一试！ 使用 Word 网页版，无论你身在何处，都可以创建文档，添加文本、图像及艺术效果，并共享文件以与其他人协作。

现在，可以使用新的收藏夹恢复功能在 Microsoft Edge 中还原丢失或意外删除的收藏夹。 你需要登录到 Microsoft 帐户并 启用同步设置 才能使用收藏夹恢复功能。 若要在 Microsoft Edge 中还原丢失或删除的收藏夹，请执行以下操作：

Microsoft Defenderは、マルウェアの保護、Web 保護、リアルタイムのセキュリティ通知、セキュリティに関するヒントを使用して、人々や家族がより安全なオンラインを維持するのに役立つセキュリティ アプリです。Microsoft Defender は、Microsoft 365 Familyまたは個人用サブスクリプションに含まれており ...

The easiest way to get language packs for Windows 8.1 and Windows RT is to download and install them using the Language Control Panel. Download and install additional languages to view menus, dialog boxes, and other user interface items in your preferred language.