The following problems in .NET Framework 4.8 are fixed in this update. ASP.NET: Fixed System.Web.Caching initialization bug when using ASP.NET cache on machines without IIS.

From the.NET Framework 4, we remove the IEHost.dll file for the following reasons: IEHost/HREF-EXE-style controls are exposed to the Internet. This poses a high security risk, and most customers who install the Framework are benefiting very little from this security risk. Nov 11, 2019 · The Microsoft .NET Framework Repair Tool detects frequently occurring issues that affect Microsoft .NET Framework setup or updates. The tool tries to resolve those issues by applying known fixes or by repairing corrupted installations of the supported .NET Framework versions. This tool troubleshoots common issues with the setup of Microsoft .NET Framework or with updates to Microsoft .NET Framework setup installation. Additionally, this tool tries to resolve these issues by applying known fixes or by repairing the installed product. Download .NET Framework.NET Framework is a Windows-only version of .NET for building any type of app that runs on Windows. Jul 13, 2020 · Troubleshooting. If you encounter errors or other problems with .NET, download and run Microsoft's .NET Framework Repair Tool. If that doesn't resolve your issue, run the System File Checker and then open Control Panel and choose Programs and Files. Open .NET Framework 4 and select Repair. After rebooting try installing the .NET framework 3.5 again on your computer. If you are still facing the problem go for the next fix. Fix-2 Install the Optional Feature with Windows MCT-

You cannot install an earlier version of the .NET Framework on your machine if a later version is already installed. 4.x versions of the .NET Framework can be used to run applications built for the .NET Framework 4.0 through that version.

I am having some problems with .NET Framework. I have 3.5.1 installed, but last week when I tried opening a program that uses .NET Framework it wouldn't open. I'm not sure what I did, I have uninstalled all the updates I did last week, except for KB2670838 which I can't uninstall. You cannot install an earlier version of the .NET Framework on your machine if a later version is already installed. 4.x versions of the .NET Framework can be used to run applications built for the .NET Framework 4.0 through that version.

Downloads for building and running applications with .NET Framework 4.0 . Get web installer, offline installer, and language pack downloads for .NET Framework.

This tool troubleshoots common issues with the setup of Microsoft .NET Framework or with updates to Microsoft .NET Framework setup installation. Additionally, this tool tries to resolve these issues by applying known fixes or by repairing the installed product. Download .NET Framework.NET Framework is a Windows-only version of .NET for building any type of app that runs on Windows. Jul 13, 2020 · Troubleshooting. If you encounter errors or other problems with .NET, download and run Microsoft's .NET Framework Repair Tool. If that doesn't resolve your issue, run the System File Checker and then open Control Panel and choose Programs and Files. Open .NET Framework 4 and select Repair. After rebooting try installing the .NET framework 3.5 again on your computer. If you are still facing the problem go for the next fix. Fix-2 Install the Optional Feature with Windows MCT-