The Communication Studio Installation misses .NET Framework 3.5

Solution

1. Open the Windows Features window:
   1. Press the 'Windows key + R' to open the Run dialog.
   2. Type 'optionalfeatures' and press Enter.
2. Enable .NET Framework 3.5:
   1. In the Windows Features window, locate the option for ".NET Framework 3.5 (includes .NET 2.0 and 3.0)".
   2. Check the box next to this option and click on "OK".
3. Wait for the installation to complete:
   1. Windows will download the necessary files and install .NET Framework 3.5. Ensure your computer is connected to the internet.