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Update Windows - Microsoft Support
In Windows 11, you decide when and how to get the latest updates to keep your device running smoothly and securely. To manage your options and see available updates, select Check for Windows updates. Or select Start > Settings > Windows Update . Here's some other info you might be looking for:
新增前置重疊時間或延隔時間至任務 - Microsoft 支援服務
若要增加延遲時間,請輸入正數或百分比 (例如 2d) 。. 延隔時間會在兩個具有相依性的工作之間造成延遲。 例如,如果您想要在第一個任務結束和第二個任務開始之間延遲 2 天,請在兩個任務之間 建立完成-開始相依性 ,然後在第二個任務開始之前加上 2 天的延遲時間。
Applies To: Project Online Desktop Client, Project Professional 2021, Project Standard 2021, Project Professional 2019, Project Standard 2019, Project Professional 2016, Project Standard 2016
Open Device Manager - Microsoft Support
Windows 10. In the search box on the taskbar, type device manager, then select Device Manager from the menu. Open Device Manager.
Pair a Bluetooth device in Windows - Microsoft Support
Here's how: In Settings: Select Start > Settings > Bluetooth & devices , and then turn on Bluetooth . In quick settings: To find the quick setting for Bluetooth, select the Network, Sound, or Battery icons ( ) next to the time and date on the right side of your taskbar. Select Bluetooth to turn it on.
采用现金流:在 Excel 中计算 NPV 和 IRR - Microsoft 支持
XNPV 函数 (速率、值、日期) 使用不规则间隔发生的现金流确定净现值。. 每个指定为 值的 现金流都发生在计划的付款日期。. IRR 函数 (值, [guess]) 使用定期发生的现金流(例如每月或每年)确定内部收益率。. 每个现金流(指定为 值 )在期末发生。. IRR 是通过 ...
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Open the Camera in Windows - Microsoft Support
Windows 11 Windows 10. To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras, you can switch between them by selecting Change Camera at the top right once the Camera app is opened. Open Camera.
Upgrade to Windows 11: FAQ - Microsoft Support
Upgrade to Windows 11: FAQ. An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11. An update ensures you have the most recent features and security improvements for your current version of Windows.
Fix Bluetooth problems in Windows - Microsoft Support
Here’s how: Check in quick settings: Select the Network, Sound, or Battery icons ( ) on the right side of the taskbar, look for the Bluetooth quick setting, then select Bluetooth to turn it on. You’ll see “Not connected” if your Windows 11 device isn’t connected to any Bluetooth accessories. Check in Settings: Select Start > Settings ...
استكشاف مشكلات تحديث Windows وإصلاحها - دعم Microsoft
قد يكون جهازك غير قادر على التحديث إلى الإصدار الأخير من Windows 11 لعدة أسباب. قد تساعدك التلميحات التالية في تحديد المشكلة التي تؤثر على جهازك. قبل البدء، تأكد من توصيل جهازك بمصدر طاقة ومن ...
SUMIF function - Microsoft Support
If you want, you can apply the criteria to one range and sum the corresponding values in a different range. For example, the formula =SUMIF(B2:B5, "John", C2:C5) sums only the values in the range C2:C5, where the corresponding cells in the range B2:B5 equal "John." To sum cells based on multiple criteria, see SUMIFS function.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016