Verify that the output status displays and State: Installed . Troubleshooting Installation Errors
Instead, use these authorized, safe methods to acquire the genuine package:
dism /online /add-package /packagepath:C:\microsoft-windows-netfx3-ondemand-package.cab Use code with caution.
DISM /Online /Add-Package /PackagePath:"C:\Microsoft-Windows-NetFx3-OnDemand-Package.cab" Use code with caution. Microsoft-windows-netfx3-ondemand-package.cab Download
Or simply check Control Panel > Programs > Turn Windows features on or off – .NET 3.5 should be checked.
| 错误代码 | 错误原因 | 解决方案 | | :--- | :--- | :--- | | | 无法下载所需文件，但CAB源存在。 | 检查源路径是否完整；若网络受限，请配合 dism.exe /online /cleanup-image /restorehealth 命令修复系统映像。 | | 0x800F081F / 0x800F0907 | 源路径无效或文件版本不匹配。 | 使用 winver 检查系统版本，并从同版本的Windows ISO中提取最新且匹配的CAB文件。 | | 0x800F0922 | 磁盘空间不足或系统保留分区损坏。 | 清理C盘空间；或在CMD中运行 reagentc /info 检查Windows恢复环境（WinRE）配置是否正常。 | | 0x800F0954 | 组策略或注册表强制使用WSUS（企业常见）。 | 在“本地组策略编辑器”中设置“备用源文件路径”并启用“指定可选组件安装和组件修复的设置”。 |
dism /online /enable-feature /featurename:NetFX3 /All /Source:D:\sources\sxs /LimitAccess Use code with caution. Step 4: Verify Installation Success Verify that the output status displays and State: Installed
Place the .cab in a local folder (e.g., D:\sources\sxs\ ).
Specifically, the Microsoft-windows-netfx3-ondemand-package.cab contains the core components and files required to run (which also includes .NET 2.0 and 3.0) on your system. Because Windows 10 and 11 rely on newer versions like .NET 4.x and 5/6, legacy programs designed for older Windows versions won't work unless this specific package is present. Why Do You Need It?
Once you have extracted the .cab file using Method 1, follow these steps to install it via the Command Prompt. Or simply check Control Panel > Programs >
Copy the microsoft-windows-netfx3-ondemand-package~*.cab file to the root of your C:\ drive. For simplicity, you can also rename the file to netfx3.cab . Placing it in the root directory makes the command path shorter and less prone to typos.
How to Get the Microsoft-windows-netfx3-ondemand-package.cab File