Final answer:
To install .NET Framework 3.5 on Windows Server 2019, you can use the Server Manager to add this feature. You need to choose the '.NET Framework 3.5 Features' in the 'Select features' section and proceed with the installation. If required, provide an alternate source path from the installation media under the 'sources\sxs' folder.
Step-by-step explanation:
To install .NET Framework 3.5 on Windows Server 2019, you can follow these steps:
- Open the Server Manager from the Start menu or taskbar.
- In Server Manager, click on 'Manage' and then select 'Add Roles and Features'.
- On the 'Before you begin' page, click 'Next'.
- Select 'Role-based or feature-based installation' and click 'Next'.
- Choose the server on which you want to install .NET 3.5 and click 'Next'.
- In the 'Select features' section, scroll down and check the box next to '.NET Framework 3.5 Features'. You may also need to specify an alternate source path if the files are not available on the server. In most cases, the files are located on the installation media under the 'sources\sxs' folder.
- Click 'Next' and then 'Install'. The installation progress will be displayed and you will be prompted when it completes.
- Once the installation is finished, click 'Close'.
If you encounter any issues during the installation, ensure that the server has access to the installation media or the path to the necessary files. It's also a good practice to run Windows Update to make sure that all components of the .NET Framework are up to date after installation.