Invisible digital signatures in Word, Excel, or PowerPoint. An invisible digital signature, like a visible digital signature line, assures the authenticity, integrity, and origin of a document.

Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.

Windows 中的磁盘管理可帮助你执行诸如初始化新驱动器、扩展或压缩卷等高级存储任务。

Scenario. Description. Recommended Solution. Add Teams meeting add-in for Outlook. Helps fix the issue where teams meeting add-in is missing or is not loaded, preventing you from creating teams meeting from Outlook.

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

与以前版本的 Windows 不同的是，你需要使用媒体创建工具来创建用于安装 Windows 10 的 ISO 文件。 确保你有 Windows 10 安装许可证，然后按照以下步骤操作：

DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。. 某些应用程序和游戏需要 DirectX 9。 但是，你的计算机包含更新版本的 DirectX。 如果安装并运行需要 DirectX 9 的应用程序或游戏，你可能会收到错误消息“无法启动此程序，因为计算机中丢失 d3dx9_35.dll。

重要: 分节符不同于分页符。如果想要更改页眉或页脚的页面之前已有分页符， 请删除分页符 并将其替换为分节符，如下所示。

On the Chart Design tab, click Add Chart Element, point to Up/Down Bars, and then click Up/down Bars.. Depending on the chart type, some options may not be available.

Things to try first. Try these things first to help you fix or narrow down the connection problem. Run Get Help to troubleshoot and fix common connection problems. Right click the network icon in the right side of the taskbar and select Diagnose network problems or open Get Help for Network & Internet