Microsoft .NET Framework Repair Tool is available
The .NET Framework Repair Tool provides an option to repair the versions of .NET Framework that are installed on the computer (step 3 of the process in the "Repair Tool options" section). The tool requires the redistributable files of those versions to be available at the time of repair.
The .NET Framework 4.7 offline installer for Windows
The Microsoft .NET Framework 4.7 is a highly compatible and in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, and 4.6.2. The offline package can be used in situations in which the web installer cannot be used because of lack of Internet connectivity.
Microsoft .NET Framework 4.8 offline installer for Windows
The Microsoft .NET Framework 4.8 is a highly compatible, in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2. The offline package can be used in situations in which the web installer cannot be used because of lack of Internet connectivity.
Microsoft .NET Framework 4.7.2 offline installer for Windows
Microsoft .NET Framework 4.7.2 is a highly compatible, in-place update to .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1. The offline package can be used in situations in which the web installer cannot be used because of a lack of Internet connectivity.
Use the System File Checker tool to repair missing or corrupted system ...
If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track. Run the System File Checker tool (SFC.exe)
Microsoft .NET Framework 4.8.1 for Windows 10 version 21H2, Windows 10 ...
Microsoft .NET Framework 4.8.1 is a highly compatible and in-place update to .NET Framework 4.8. It includes native support for the Arm64 architecture (Windows 11+), accessibility improvements as well as other improvements. For a complete list of improvements see: .NET Framework 4.8.1 release notes.
Microsoft .NET Framework 4.8 on Windows 10 version 1709, Windows 10 ...
Microsoft .NET Framework 4.8 is a highly compatible and in-place update to .NET Framework 4.7, 4.7.1 and 4.7.2. However, it can run side-by-side with .NET Framework 3.5 Service Pack 1 (SP1) and earlier versions of .NET Framework.
Fix problems that block programs from being installed or removed
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter.
.NET 6.0 Update - Microsoft Support
How to obtain and install the update. This update is available on Microsoft Update for Windows client operating systems and available on WSUS and MU Catalog for Windows Server operating systems. Prerequisites. This update will be offered if you have .NET 6.0 installed on a supported version of Windows. Restart Requirement.
Uninstall or remove apps and programs in Windows
Uninstall or remove apps and programs in Windows. There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.