WIN7下Visual Studio2019安裝時報錯Microsoft.Net.4.7.2.FullRedist
下載.net4.7.2的離線安裝包
下載地址：https://support.microsoft.com/zh-cn/help/4054530/microsoft-net-framework-4-7-2-offline-installer-for-windows
在安裝.net4.7.2時發生嚴重故障 后來看了日志 發現紅字
Returning IDRETRY. INSTALLMESSAGE_ERROR [Error 1321.The Installer has insufficient privileges to modify this file: C:\Windows\system32\msvcp110_clr0400.dll.]
Returning IDRETRY. INSTALLMESSAGE_ERROR [Error 1321.The Installer has insufficient privileges to modify this file: C:\Windows\system32\msvcp110_clr0400.dll.]
Returning IDRETRY. INSTALLMESSAGE_ERROR [Error 1321.The Installer has insufficient privileges to modify this file: C:\Windows\system32\msvcp110_clr0400.dll.]
Returning IDRETRY. INSTALLMESSAGE_ERROR [Error 1321.The Installer has insufficient privileges to modify this file: C:\Windows\system32\msvcp110_clr0400.dll.]
解決方法
將C:\Windows\system32 下面的msvcr110_clr0400.dll、msvcp110_clr0400
和 C:\Windows\SysWOW64下面的msvcr110_clr0400.dll、msvcp110_clr0400
四個文件屬性-安全 -編輯-里面給system admin users 用戶完全控制權限，然后就可以安裝了。
然后重啟電腦安裝VS2019即可。