I would suggest you to run Windows update troubleshooter and check. This issue may occur due to corrupt Windows update files or settings.
Why Cannot install NET Framework 4.5 on Windows 7? Select any updates that are found to install.
Click on the Check for Updates button.Select the Windows Update from the top of the search list.In the Search Bar, search for Windows Update.2 is a highly compatible, in-place update to the Microsoft. 2 (Offline Installer) for Windows Vista SP2, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2008 SP2, Windows Server 2008 R2 SP1, Windows Server 2012 and Windows Server 2012 R2. NET 4.5 in Windows 7 and Windows Vista, yes! Does. NET 5 released with Windows 7 support when Windows 7 is not supported anymore before. NET Framework 3.5 is fully enabled to ensure that any apps on the computer continue to work correctly. If the user is upgrading from Windows 7 to Windows 8. … NET 3.5 are available on the Windows 8 installation media as an optional feature. NET Framework 4.5 is enabled by default in Windows 8. NET Framework installed on Windows 7 by default? Wait for Windows to complete the operation.You will see the checkbox become filled.NET Framework version on your computer, it performs in-place update for. NET Framework 4.6 for Windows Vista SP2, Windows 7 SP1, Windows 8 and Windows 8.1. Microsoft has released RTM or stable version of. NET Framework 4.8 for Windows 7 Service Pack 1, Windows 8.1, and Windows 10, and all server platforms starting with Windows Server 2008 R2 Service Pack 1 (means Server 2012 R2, 2016, and 2019 are supported as well). NET Framework 4.8 is a new version of Microsoft’s popular framework. Supported client operating systems Operating system Which NET framework is suitable for Windows 7? 1 is available for Windows 7 SP1, Windows 8.1, Windows 10 Anniversary Update, Windows 10 Creators Update, Windows Server 2008 R2 SP1, Windows Server 2012, Windows Server 2012 R2, and Windows Server 2016.