.NET 4.5.1 Framework installation fails on Windows 7


  • I want to get .NET 4.5.1 installed on Windows 7 computer but when I do I get the following error:

    "There is not enough disk space on your drive for the new files to be uncompressed and installed"

    There is loads of space, and if I uncompress the redistributable using 7-zip and run setup I get the following error:

    "Blocking Issues: You cannot use this setup program to install the .NET Framework"

    This computer previously had .NET Framework 4.5.2 installed, but I have a requirement for 4.5.1 so I uninstalled 4.5.2.

    Any suggestions how I can resolve this?



    Monday, November 2, 2015 11:59 AM


  • Hi Mark Salter,

    The .net installation package is not available to extract the .exe package and click the setup.exe to install it directly.

    According to the error messages, please ensure the C:\(system drive) has enough spaces. We could try the built-in disk clean tool  to clear the C:\ to get more spaces.
    Righ click C:\, Properties, General, Disk Cleanup

    Please right click the installation package and choose "Run as administrator".

    Best regards

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    Tuesday, November 3, 2015 9:10 AM