Notes: If you can't use your camera to scan a QR Code, click Can't scan the image on your PC and tap Enter code manually on your mobile.. If you are allowed by your admin to use phone sign-in using Authenticator, you'll be able to go through device registration to get set up for passwordless phone sign-in and Azure AD Multi-Factor Authentication.

尚未运行 Windows 11？ 请参阅激活 Windows或激活 Windows 7 或 Windows 8.1。. 尝试“激活疑难解答” 如果运行的是 Windows 11，并且最近更换了重要的硬件（如更换主板）或重新安装了 Windows，则“激活疑难解答”有可能帮助重新激活 Windows。

即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Select Review activity to check for any unusual sign-in attempts on the Recent activity page.If you see account activity that you're sure wasn't yours, let us know and we can help secure your account—if it's in the Unusual activity section, you can expand the activity and select This wasn't me.If it's in the Recent activity section, you can expand the activity and select Secure your account.

Organize your ideas. Collections help you keep track of your ideas on the web - shopping, planning a trip, research, or just want to pick up where you left off.

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。

This article explains how to renew your Microsoft 365 subscription for personal or family use and what you can do after you renew.It also provides detailed troubleshooting help.. If you need help managing your payment, see Add, update, or remove credit cards and other ways to pay.. If you want to check prices before you renew, see Choose the right Microsoft 365 for you.

Roaming of the work account's device certificate is not supported. The certificate, issued by "MS-Organization-Access", is stored in the Personal (MY) certificate store of the current user and on the local machine.

有些时候，你需要检查单元格是否为空白，通常是因为你可能不希望公式没有输入值就显示结果。 此情况下，将 IF 与 ISBLANK 函数搭配使用： =IF(ISBLANK(D2),"Blank","Not Blank")

For the website(s) you would like to allow scripting, enter the address within the Add this website to the zone text box and click Add. Note: If the address does not begin with "https:", you many need to uncheck "Require server verification (https:) for all sites in this zone".