If you want to install Security Center on a computer running Windows 7, you have to manually activate .NET Framework 3.5.1.
For Windows 8 and Window 2012, the .NET Framework feature is automatically enabled by the InstallShield Wizard if you have an active Internet connection.
What you should know
- Click .
- In the Programs and Features dialog box, click Turn Windows features on or off.
- In the Windows Features dialog box, select the Microsoft .NET Framework 3.5.1 option, and click OK.