Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.

当在新设备中首次启动 Windows 10 时，设备上已安装的防病毒保护程序即是你的默认安全应用。但是，Windows 安全中心已预安装并可随时使用。

The classic cold-call scam. The scammers call you and claim to be from the tech support team of Microsoft or another company. They offer to help solve your computer "problems".

Use the People App to organize, add, create, view, and edit contacts. Getting to the People App To access the app, go to View more apps on the left side of Teams. Search for “people” or select it from the list of preinstalled apps.

How to open the Camera app in Windows. 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

Import a text file by opening it in Excel. You can open a text file that you created in another program as an Excel workbook by using the Open command. Opening a text file in Excel does not change the format of the file — you can see this in the Excel title bar, where the name of the file retains the text file name extension (for example, .txt or .csv).

Note: If you are in tablet mode, desktop icons are not displayed.To see your desktop icons in tablet mode, go to Start > Settings > System > Tablet, then select Change additional tablet settings.Under When I'm using tablet mode, make sure that Hide app icons on the taskbar and Automatically hide the taskbar are both set to Off.

Check your computer's date settings. Excel uses your computer's date system. If a cell's date isn't entered using the same date system, Excel won't recognize it as a true date.

注意: 某些版本的 Project 没有关联的Microsoft帐户、工作或学校帐户，或者你需要以其他方式兑换产品密钥。如果这是你获取 Project Professional 2021、Project Professional 2019、Project Standard 2021、 或 Project Standard 2019 的版本的方式，请参阅以下内容： Microsoft 工作区折扣计划(以前称为家用许可计划)：你通过公司 ...

Training: Switch to SharePoint Online from Google Sites and start working together with these quick instructions on how to access, upload, and share the content, information, and apps your team relies on with SharePoint Online.