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How to Enable or Install Microsoft .NET Framework 4.5 on Server 2012, Windows 8.1, Windows 8, or Windows 7?
Author: Microengine Views: 68615 Created: 09-07-2018 03:09 PM 0 Rating/ Voters

Problem (Issue) Statement:

How to enable / install Microsoft .NET Framework 4.5 on Server 2012, Windows 8.1, Windows 8 or Windows 7?


A guide to enable / install Microsoft .NET Framework 4.5 on Server 2012, Windows 8.1, Windows 8 or Windows 7

Related Software:

  • SQL Server Express 2012 (Version: 11.0.2100) and Later.

Related Hardware:


System Application:

Pre-requisite installation for SQL Server 2012 or earlier.

Symptom and Finding:



For first time installation of Microsoft .NET Framework 4.5 in preparation for installation of Microsoft SQL Server 2012 or earlier.



Step-by-step Guide:

  • Method 1: To enable the Microsoft .NET Framework 4.5 online with Internet connection:


This method requires the Server PC to be connected to the internet.

Step 1: Press the Windows   key on your keyboard, type Control Panel, and press Enter.

Step 2: The Control Panel will be shown. Click Program.

Figure 1: Control Panel Window

Step 3: In Program window, click Turn Window feature on or off under Programs and Feature section.

Step 4: The Turn Windows features on or off window will be shown. Check the ASP.NET 4.5 checkbox under .NET Framework 4.5 Advanced Services folder.

Figure 2: Turn Windows Features On or Off Window

Step 5: Windows Features will then search for the required files. The Microsoft .NET Framework 4.5 setup files will then be available for download.

Figure 3: Windows Searching for Required Files

Step 6: After the files were downloaded, Windows will turn the feature on. The Applying changes window will indicate the installation progress.

Figure 4: The Applying Changes Window Indicating the Installation Progress

Step 7: The following window will be shown once Windows completed the requested changes. Click Restart Now to reboot Server PC to finish the installation process.

Figure 5: The Windows Completed the Requested Changes Window

  • Method 2: To Install the Microsoft .NET Framework 4.5 offline without internet connection:

Step 1: Go to Microsoft .NET Framework 4.5 download link and click Download to download the setup file.

Figure 6: The Microsoft .NET Framework 4.5 Download Page


The download process requires internet connection. However, the download PC can be a different PC from the Server PC. The installation process does not require internet connection once the installer file is downloaded.

Step 2: Locate the downloaded setup file and transfer the file to a USB drive to install the setup file on the Server PC which does not have internet connection.

Step 3: At the Server PC, run the donnetfx45 setup.exe on your USB drive. Follow the installation wizard to complete the installation.

Figure 7: Run the Setup File to Begin the Installation

Step 4: Restart your PC after completing the installation if prompted to do so.

Microsoft .NET Framework Download Link

  • Download Link for Microsoft .NET Framework 4.5 for Server 2008 R2, Server 2012, Windows 7, Windows 8 and Windows 8.1
  • Download Link for Microsoft .NET Framework 4.6 for Server 2012 R2, Server 2016 and Windows 10.

Date Documentation:


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