发布时间：2021 年 8 月. 本文适用于由于电脑当前无法安全启动而无法升级到 Windows 11的用户。 如果你不熟悉此级别的技术详细信息，我们建议你查阅电脑制造商的支持信息，获取特定于你的设备的更多说明。

If contacts have been deleted, you might be able to restore them. See Delete contacts or restore contacts in Outlook.com.. Step 5: Help prevent future hacks. To prevent your account from being hacked in the future, see Help protect your Outlook.com email account.. How did a hacker get my password?

想要更轻松地获取高级版应用？ 请尝试使用 Microsoft 365 获取高级版本的 Word、Excel、PowerPoint、Outlook 等。 Microsoft 365 是基于云的订阅服务，它结合了最新的 AI 支持的应用，因此你可以在任何设备上随时随地创建和共享。

如果公式引用了 Excel 中未定义的名称，则会看到 #NAME？ 错误。 请参阅以下引用 Profit 的 SUM 函数示例，该 函数是工作簿中未定义的名称。. 解决方案：在 名称管理器中定义一个名称，然后按照以下步骤将该名称添加到公式中：. 如果电子表格中已有数据，并且想要为特定单元格或单元格区域分配 ...

准备好安装了吗？ 在开始之前，请确保电脑或 Mac 满足 系统要求。. 如果你已兑换产品密钥，只需重新安装应用，或者知道你已通过工作或学校分配了许可证，则可以跳到登录部分 ，下载并安装 Microsoft 365 或 Office。 但是，如果是 首次 安装 Microsoft 365 或 Office，可能需要先执行一些步骤。

Organization news. News can come from many different sites. but there might be "official" or "authoritative" sites for organization news. News from these sites are distinguished by a color block on the title as a visual cue, and are interleaved throughout all news posts displayed for users on the SharePoint start page.

Chat: If you wish to guarantee Chat is turned off for a given PC, you can do so by mapping www.bing.com to either Nochat.bing.com (which will lock Chat as turned off for the given PC) or Nochatstrict.bing.com (which will lock Chat as turned off for the given PC and the SafeSearch setting as locked to strict), by following the same steps as outlined above but in step 6, pinging either “nochat ...

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Advanced Systems Format (.asf) The Advanced Systems Format (ASF) is the preferred Windows Media file format. With Windows Media Player, if the appropriate codecs are installed on your computer, you can play audio content, video content, or both, that is compressed with a wide variety of codecs and that is stored in an .asf file.

需要在表格中或按行查找内容时，请使用 vlookup 函数。 例如，按部件号查找汽车部件的价格，或根据员工 id 查找员工姓名。 借助 xlookup，你可以在一列中查找搜索词，并在同一行的另一列中返回结果，无论返回结果的列在原列的哪一侧。