Installation Error Code (0x80070643) while installing .NET Framework on Windows 7


I'm trying to install .NET Framework 4.5.1 on Windows 7 and I am getting these errors which I found in the installation log files.

*Calling MsiInstallProduct(D:\40287ea5693beb1db3\netfx_Full_GDR_x86.msi, EXTUI=1
 Returning IDOK. INSTALLMESSAGE_ERROR [The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2318.  
 MSI (D:\40287ea5693beb1db3\netfx_Full_GDR_x86.msi) Installation failed. Msi Log: Microsoft .NET Framework 4.5.1 Setup_20201029_121952400-MSI_netfx_Full_GDR_x86.msi.txt
 PerformOperation returned 1603 (translates to HRESULT = 0x80070643)
Action complete

OnFailureBehavior for this item is to Stop.
Action complete
Final Result: Installation failed with error code: (0x80070643), "Fatal error during installation. " (Elapsed time: 0 00:09:55).
 WM_ACTIVATEAPP: Focus stealer's windows WAS visible, NOT taking back focus
 Sending Manifest Report* 

I tried installing the latest version, and I also got the same error.

asked on Super User Oct 30, 2020 by Rusev Putin • edited Oct 31, 2020 by karel

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