Microsoft .NET Framework is a vital component and a programming infrastructure developed for the purpose of building, deploying and executing Windows 32/ 64 bit applications. A failed .NET Framework installation can be a hurdle in running applications that use .NET Framework components. The solution is simple: Look for existing installation entries into both Windows Features and Settings page and uninstall them and then try a new installation.
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Alternative manual troubleshooting steps are given below:
Uninstall Existing Version from Windows Features
1. Press Windows Key + X; select Search.
2. Type Windows Features in the Search Box and open Turn Windows Features On or Off from the Search Results.
3. Uncheck the following check boxes:
- .NET Framework 3.5 (includes .NET 2.0 and 3.0)
- .NET Framework 4.6 Advanced Services
4. Click OK to uninstall selected components.
5. Restart your laptop to reflect the changes immediately.
6. Now visit the Microsoft Download Center and try installing the latest.NET Framework.
Uninstall Existing Version from Settings Page
1. Click the Start icon on Taskbar, and then click on Settings.
2. In the new page, click System icon.
3. Click Apps & Features from the tabs displayed on left corner of your screen.
4. Your system will generate list of all installed apps. Under Type an app name textbox, enter .NET Framework and check for its entry into the Search Results.
5. Click Microsoft .NET Framework and then Uninstall.
6. Follow the uninstaller wizard, reboot your laptop.