Download the latest release of Mouse and Keyboard Center: Latest release: Mouse and Keyboard Center 14. This latest release supports these new devices: What's new or improved. This latest release includes these new features or improvements: Smart Switch now supports both mouse and keyboard.

If your Windows 11 device doesn’t have a SIM card or eSIM, you can still connect to a cellular network by plugging in an external cellular device (also called a cellular modem or mobile broadband device). Either way, you must have a data plan from a mobile operator to connect.

Fix Bluetooth problems in Windows. If you're having trouble hearing audio in Teams, you might be having trouble with your microphone. Here are some solutions to get you back on track. Solutions include: updating device drivers, checking privacy settings.

语法. SUMIF (range, criteria, [sum_range]) SUMIF 函数语法具有以下参数：. 范围 必需。. 希望通过标准评估的单元格范围。. 每个范围内的单元格必须是数字或名称、数组或包含数字的引用。. 空白和文本值将被忽略。. 选定的范围可以包含标准Excel格式的日期（如下例 ...