We have already discussed how to install various versions of .NET framework on Windows 8 but if you are using its server edition i.e. Windows Server 2012 then you can also install .NET framework in it.
To install .NET framework in Windows Server 2012, follow these steps:
Step 1: Open Server Manager and click on Manage and then click on Add Roles and Features.
Step 2: After clicking Next, you’ll see the Select installation type screen and select Role-based or feature-based installation and click Next.
Step 3: Here on the Select destination server screen, choose your target server and click Next.
Step 4: On the next screen, you’ll see the Select server roles screen, here also click Next.
Step 5: Finally on the Select features screen, you will find the option to install .NET framework in Windows Server 2012. Check the box for .NET Framework 3.5 Features and let windows install it.
Note that if you had .NET framework previously installed and have just upgraded from Windows Server 2008 R2 to Windows Server 2012 then you don’t have to install it again because it will be enabled automatically.