Screen mirroring and projecting to your PC or wireless display
Cast to a display from a Windows PC. You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.
Download and install or reinstall Office 2019, Office 2016, or Office ...
Some Office 2019, Office 2016, and Office 2013 products come with a product key. If yours did, before installing Microsoft 365 for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup. Redeeming your key is what links your account with Microsoft 365 so you only have to do this once.
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Microsoft .NET Framework 4.8 offline installer for Windows
The Microsoft .NET Framework 4.8 is a highly compatible, in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2. The offline package can be used in situations in which the web installer cannot be used because of lack of Internet connectivity.
How to start a scan for viruses or malware in Microsoft Defender ...
If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.
Applies To:
Microsoft Defender on Android, Microsoft Defender on Mac, Microsoft Defender on Windows
View and delete browser history in Microsoft Edge
You can view and clear your Microsoft Edge browsing history stored on a single device, across all synced devices, and in the cloud. You may choose to clear your browsing history at any time.
Change your browser home page - Microsoft Support
Get the steps for changing your home page in Microsoft Edge, Internet Explorer 11, Google Chrome, Firefox, and Safari.
The .NET Framework 4.6.2 web installer for Windows
About the .NET Framework 4.6.2. The Microsoft .NET Framework 4.6.2 is a highly compatible, in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, and 4.6.1. The web installer is a small package that automatically determines and downloads only the components that apply to a particular platform.
Microsoft .NET Framework 4.6 (Web Installer) for Windows
This article describes an update about the Microsoft .NET Framework 4.6 for Windows Vista SP2, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2008 SP2, Windows Server 2008 R2 SP1, Windows Server 2012, and Windows Server 2012 R2.
Microsoft .NET Framework 4.8.1，适用于 Windows 10 版本 21H2、Windows 10 版本 ...
Microsoft .NET Framework 4.8.1 是.NET Framework 4.8 的高度兼容和就地更新。 它包括对 Arm64 体系结构的本机支持 (Windows 11+) 、辅助功能改进以及其他改进。 有关改进的完整列表，请参阅：.NET Framework 4.8.1 发行说明。
.NET 6.0 - Microsoft 支持
有关 .NET Core 技术的协助支持，请联系 Microsoft 支持Professional。 你需要在支持的服务级别 (最新的可用服务更新) 才能获得支持。 Community支持