Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.

Microsoft Defender Offline is a powerful offline scanning tool that runs from a trusted environment, without starting your operating system. When should I use Microsoft Defender Offline?

To find Sync settings, select Start , then select Settings > Accounts > Sync your settings . Choose from settings such as language preferences, passwords, and color themes. If you turn on Other Windows settings, Windows also syncs some device settings (for things like printers and mouse options), File Explorer settings, and notification preferences.

First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing.Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies ...

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。

您可以将同一行或列中的两个或多个单元格合并为一个单元格。例如，您可以水平合并多个单元格，以创建横跨多个列的表格 ...

On your Xbox 360. To change your country/region on Xbox 360, you can't simply update your location as with the Xbox One or Xbox Series X|S. Instead, you need to migrate your Xbox profile, which could impact other subscriptions and services.

使用自动筛选或内置比较运算符（如 Excel 中的“大于”和“前 10 个”）显示所需数据并隐藏其余数据。 筛选单元格或表格区域中的数据后，可以重新应用筛选器以获取最新结果，或者清除筛选器以重新显示所有数据。

The TEXTJOIN function combines the text from multiple ranges and/or strings, and includes a delimiter you specify between each text value that will be combined. If the delimiter is an empty text string, this function will effectively concatenate the ranges.

Windows 中的屏幕闪烁问题通常是由显示驱动程序导致的。 若要更新显示驱动程序，需要在安全模式下启动电脑、卸载当前的显示适配器，然后检查驱动程序更新。