这个错误是由于 Windows 7 系统的受信任根证书列表过旧导致的。.NET Framework 4.6.2 的安装包中包含的数字签名是由一个较新的根证书颁发的,而该证书在旧版的 Windows 7 系统上不被信任。这种情况在有联网的电脑上很少出现,因为 Windows Update 会自动更新证书。但在离线环境下,证书列表无法更新,就会触发此错误。
The web installer downloads components during installation. If your internet drops, the installation fails. The offline installer contains all necessary packages in one single, large file.
Navigate to the following path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full Look for the DWORD value.
When downloading the .NET Framework, Microsoft usually offers two choices: the Web Installer and the Offline Installer (also known as the Standalone Installer). download free net framework 46 2 offline installer windows 7
At least 2.5 GB of free space on the system drive (usually C:) to accommodate temporary installation files.
Restart: Even if not prompted, it is best practice to restart your PC to finalize the registry changes. Troubleshooting Common Installation Errors
Verification: Check if you have Windows 7 SP1. Right-click "Computer" and select "Properties." If it does not say "Service Pack 1," you must update Windows first. Restart: Even if not prompted, it is best
If you do not have SP1 installed, you can download it from Microsoft:
Ability to handle file paths longer than 260 characters.
Compatibility Mode: Do not run the installer in compatibility mode for older versions of Windows; it should detect Windows 7 natively. Restart: Even if not prompted
The Microsoft .NET Framework 4.6.2 offline installer is a compatible in-place update requiring Windows 7 SP1 and administrative privileges to install. The installer allows for deployment on systems lacking an active internet connection. Download the installer at Microsoft Support Microsoft Support The .NET Framework 4.6.2 offline installer for Windows
Operating System: Windows 7 Service Pack 1 (SP1) is mandatory. Processor: 1 GHz or faster.
It can be saved to a USB drive and used to update multiple machines quickly.
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