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Check Your DOTNET

How to check what versions of .NET you have on your computer

There are many ways to check what version of .NET (DOTNET) you have installed on your computer. Here are a few common methods.

Check for .NET in the File System

You can check your installed versions of .NET by navigating to Microsoft.NET\Framework under your Windows folders.  The complete path is usually 'C:\Windows\Microsoft.NET\Framework.  Each of the installed .NET versions will have its own folder.

Check .NET Version

Look in the Registry for .NET Installs

You can also check which versions of .NET are installed by looking in your registry in the following locations:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework
                     or
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP (better)

Check your registry with the following steps:

  1. Click on your Microsoft Start button
    Microsoft Start Button
    enter regedit
    Start the Registry Editor
    and press enter.
  2. If you are using Windows 7, you will probably run in to the message, "Do you want to allow the following program to make changes to this computer?" Click the [Yes] button to open the Registry Editor, even though you are not going to edit anything.
  3. Navigate to one of the two registry locations listed above.

The following is a picture of the first registry location on my computer.

Registry Location for .NETFramework

This next pictures shows the second location. Note that this location shows more detail? That's why I prefer it.

Registry Location for NET Framework Setup

Installed Programs

Although apparently not as detailed as checking the NET Framework Setup in the registry, you can also see which versions of .NET are installed by checking your list of installed programs.  Go to you computer Control Panel and select 'Add or Remove Programs'. If you are using Windows 7, you may just need to click the 'Uninstall a program' link instead. Don't worry, you're not going to uninstall anything.

Here is what it looks like in Windows 7. Note that I can still see a bit more detail in the file system (first method) or the NET Framework Setup in the system registry?

Check for DOTNET in Installed Programs

Last updated: 5/11/2011

Compatibility: Windows 7 (any version), Windows Vista (any version), Windows XP Professional, or Windows XP Home Edition (no other XP versions)