如果运行的是 Windows 10、Windows 8.1 或 Windows 8，请先运行收件箱部署映像服务和管理 (DISM) 工具，然后再运行系统文件检查器。. (如果运行的是 Windows 7 或 Windows Vista，请跳到步骤 3.) 键入以下命令，然后按 Enter： 完成命令操作可能需要几分钟时间。. DISM.exe /Online ...

To turn on Windows Hello. Go to Start > Settings > Accounts > Sign-in options. Select the Windows Hello method that you want to set up, Select Set up. If you don't see Windows Hello in Sign-in options, then it may not be available for your device. Windows Hello does require a compatible camera or fingerprint reader.

At the top corner of the browser, select Settings and more > Settings . To change appearance, select Appearance and make the changes you want to your default theme, zoom, toolbar, and fonts. To change startup behavior, select On startup, and then select what you want Microsoft Edge to display on startup.

The IF function is one of the most popular functions in Excel, and it allows you to make logical comparisons between a value and what you expect. So an IF statement can have two results. The first result is if your comparison is True, the second if your comparison is False. For example, =IF (C2=”Yes”,1,2) says IF (C2 = Yes, then return a 1 ...

Select Start , type device manager, then select it from the search results. Find the problem webcam from the list of devices shown in the Device Manager. It should appear either under Cameras or Imaging devices. Right-click the webcam device and select Update driver. Select Browse my computer for drivers.

Download Microsoft Defender on your devices either by: Scanning the following QR code. Searching for Microsoft Defender in your app store. Sharing with your devices, the following link: Copy link. We encourage you to install Microsoft Defender on at least five devices per person. Important: This article is about the Microsoft Defender app that ...

Windows 11 Windows 10. Windows 11 lets you quickly check your network connection status. Select the Start button, then type settings. Select Settings > Network & internet. The status of your network connection will appear at the top. Check your network connection status. Check your network connection status in Windows.

Find your Office product key. Office 365 Office 2019 Office 2016 Office 2013. Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead. Using product keys with Office.

Windows 11 Windows 10. To adjust power and sleep settings in Windows 11, select Start > Settings > System > Power & battery > Screen and sleep. Screen: Select how long you want your device to wait before turning the screen off when you're not using your device. Sleep: Select how long you want your device to wait before going to sleep when you ...

Problem. Description. 0 (Zero) is shown instead of the expected result. Make sure Criteria1,2 are in quotation marks if you are testing for text values, like a person's name.. The result is incorrect when Sum_range has TRUE or FALSE values.. TRUE and FALSE values for Sum_range are evaluated differently, which may cause unexpected results when they're added. ...