首先在“获取帮助”应用中运行自动音频疑难解答。. “获取帮助”将自动运行诊断，并采取正确的步骤来解决大多数音频问题。. 打开“获取帮助”. 如果“获取帮助”应用无法解决声音或音频问题，请尝试列出的可能解决方案：. Windows 11 Windows 10. 1. 检查扬声器 ...

Try Microsoft Update or contact your company help desk. To download an update manually, see Office Updates. Go to Control Panel > Programs > Uninstall a program. Find and select your version of Microsoft Office on your computer. In the bar above, click Change. Select Quick Repair > Repair. If this does not work, retry the steps, but choose ...

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open.

Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile. Get Microsoft account help. Manage your personal account from a single dashboard, including payment information, purchases, subscriptions, and more. Go to your dashboard.

若要在 Outlook.com 中获取支持，请单击此处或选择菜单栏上的帮助，然后输入查询。如果自助服务无法解决问题，请向下滚动到“仍需要帮助？”，然后选择“是”。 若要在 Outlook.com 中联系我们，需要登录。 如果无法登录，请单击 此处。 若要获取其他有关 Microsoft 帐户和订阅的帮助，请访问 帐户和 ...

Signing certificate To create a digital signature, you need a signing certificate, which proves identity. When you send a digitally-signed macro or document, you also send your certificate and public key. Certificates are issued by a certification authority, and like a driver’s license, can be revoked. A certificate is usually valid for a ...

可以更改整个演示文稿的默认字体，而不是逐个更改幻灯片中的字体。. 字体配对 (标题字体、正文字体) 是 PowerPoint 中的重要设计决策。. 单击“ 查看 > 幻灯片母版 ”。. 在“ 幻灯片母版 ”选项卡上，单击“ 字体 ”下拉菜单。. 选择要用于演示文稿中所有幻灯 ...

Under Microsoft Defender Firewall, switch the setting to On.If your device is connected to a network, network policy settings might prevent you from completing these steps. For more info, contact your administrator.

Windows 安全中心 中的病毒 & 威胁防护 可帮助你扫描设备上的威胁。. 还可以运行不同类型的扫描，查看以前的病毒和威胁扫描的结果，并获取Microsoft Defender 防病毒提供的最新保护。. 在 “当前威胁 ”下，可以：. 查看当前在你的设备上发现的任何威胁。. 查看 ...

在Word桌面应用程序中处理长而复杂的文档时，可以折叠除要关注的部分以外的所有内容。 遗憾的是，此功能尚未 Word 网页版 。 如果你有Word桌面程序，则可以单击“在Word中打开”以在Word中打开文档，并在其中折叠或展开文档的一部分，但在 Word 网页版 中查看文档时，这些部分将展开。