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Jennifer Curtis
There are many different ways to install .NET on Windows. This article helps you understand the difference between the SDK and Runtime, which runtime you should install, and the method you should use to install .NET.
Unlike .NET Framework, .NET isn't installed and tied to your version of Windows. You can only have a single version of .NET Framework installed on Windows. .NET can be installed anywhere on your computer and some apps might include their own copy of .NET.
There are three different runtimes for Windows, which enable different types of apps to run. The SDK includes all three runtimes. If you install a specific runtime, it might include other runtimes. The following table describes which runtime is included with a particular .NET installer:
To ensure that you can run all .NET apps on Windows, install both the ASP.NET Core Runtime and the .NET Desktop Runtime. The ASP.NET Core Runtime runs any web apps, and the .NET Desktop Runtime runs any desktop app, such as a Windows Presentation Foundation (WPF) or Windows Forms (WinForms) app.
There are different ways to install .NET, and some products, like Visual Studio, might manage their own version of .NET. If you install .NET through software that manages its own version of .NET, you should also install the .NET runtime separately so that you can run .NET apps.
Use Visual Studio to install .NET when you want to develop .NET apps using Visual Studio. Visual Studio manages its own copy of .NET. This method installs the SDK, Runtime, and Visual Studio templates.
The following table is a list of currently supported .NET releases and the versions of Windows they're supported on. These versions remain supported until either the version of .NET reaches end-of-support or the version of Windows reaches end-of-life.
While Windows 2012 is still supported with the latest version of .NET, .NET 6 was the last version to support Windows 7 and Windows 8.1. All three of these versions of Windows require further dependencies to be installed:
On an Arm-based Windows PC, all Arm64 versions of .NET are installed to the normal C:\Program Files\dotnet\ folder. However, the x64 version of the .NET SDK is installed to the C:\Program Files\dotnet\x64\ folder.
The x64 .NET SDK installs to its own directory, as described in the previous section. This allows the Arm64 and x64 versions of the .NET SDK to exist on the same machine. However, any x64 SDK older than 6.0, isn't supported and installs to the same location as the Arm64 version, the C:\Program Files\dotnet\ folder. If you want to install an unsupported x64 SDK, you must uninstall the Arm64 version first. The opposite is also true. You must uninstall the unsupported x64 SDK to install the Arm64 version.
Environment variables that add .NET to system path, such as the PATH variable, might need to be changed if you have both the x64 and Arm64 versions of the .NET SDK installed. Additionally, some tools rely on the DOTNET_ROOT environment variable, which would also need to be updated to point to the appropriate .NET SDK installation folder.
Visual Studio installs its own copy of .NET separate from other copies of .NET. Different versions of Visual Studio support different versions of .NET. The latest version of Visual Studio always supports the latest version of .NET.
Visual Studio Installer installs and configures Visual Studio. Some Visual Studio workloads include .NET, such as ASP.NET and web development and .NET Multi-platform App UI development. Specific versions of .NET can be installed through the Individual Components tab.
Visual Studio Code uses the versions of .NET already installed on your system. Install .NET using either .NET Installer or Windows Package Manager. Visual Studio installs its own copy of .NET that can't be used by Visual Studio Code.
You can install and manage .NET through the Windows Package Manager service, using the winget.exe tool. For more information about how to install and use WinGet, see Use the winget tool to install and manage applications.
Installing .NET through the dotnet-install PowerShell script is recommended for continuous integration and nonadmin installs. If you're installing .NET for normal use on your system, use either the .NET Installer or Windows Package Manager installation methods.
The script defaults to installing the latest long term support (LTS) version, which is .NET 8. You can choose a specific release by specifying the -Channel switch. Include the -Runtime switch to install a runtime. Otherwise, the script installs the SDK. The script is available at -install.ps1 and the source code is hosted on GitHub.
After downloading an installer, verify it to make sure that the file hasn't been changed or corrupted. You can verify the checksum on your computer and then compare it to what was reported on the download website.
You can use PowerShell or Command Prompt to validate the checksum of the file you've downloaded. For example, the following command reports the checksum of the dotnet-sdk-8.0.100-win-x64.exe file:
The .NET release notes contain a link to a checksum file you can use to validate your downloaded file. The following steps describe how to download the checksum file and validate a .NET install binary:
The release notes page for .NET 8 on GitHub at -notes/8.0 contains a section named Releases. The table in that section links to the downloads and checksum files for each .NET 8 release:
Most likely you installed both the x86 (32-bit) and x64 (64-bit) versions of the .NET SDK. This is causing a conflict because when you run the dotnet command, it's resolving to the x86 version when it should resolve to the x64 version. This problem is fixed by adjusting the %PATH% variable to resolve the x64 version first.
Verify that you have both versions installed by running the where.exe dotnet command. If you do, you should see an entry for both the Program Files\ and Program Files (x86)\ folders. If the Program Files (x86)\ folder is first, as demonstrated by the following example, it's incorrect and you should continue on to the next step.
Ensure that Smart App Control, a Windows feature, is off. Smart App Control isn't recommended to be enabled on machines used for development. Any setting other than "off" might negatively affect SDK performance.
I am a user trying to install ArcGIS Pro 3.2 (no prior installation). I am running Windows 11 on a laptop with appropriate RAM, disk space, graphics drivers, CPU, etc, x64. I have used the diagnostic tool and confirmed my system can run ArcGIS Pro. Every time I try, however, I am hit with the "Please install .NET 6.0.X, 6.0.5 minimum" error. I have browsed multiple online forums (ESRI, Reddit, GIS boards, Microsoft Help, etc) and have not been able to find a solution. I will list the following attempts, and bear in mind that I restart every time I (properly, from control panel) install and uninstall any .NET/ArcGIS Pro application, and never have two different versions installed at the same time:
I'm growing increasingly frustrated, as ESRI comments on support posts like mine keep saying the same thing; "download version 6.0.X x64 and restart your computer." I would really, really appreciate support/helpful ideas with this issue that go beyond that. I have tried all the versions anyone and everyone has recommended, and I have followed instructions to the T.
This is a lifesaver! I have a situation where perhaps I broke my system when updating to ArcGIS 3.3 from 3.2, thus I was not able to launch my ArcGIS Pro. I followed the instructions where I used the .NET uninstall tool and had a clean uninstall and reinstallation using GUI. Just don't forget to your .msi and relevant cab file.
I was trying to test our products to make sure that they are compatible with Windows Server 2016. And during some testing, I mistakenly thought that I can simply "downgrade" .NET framework from 4.6 to 4. So I removed .NET 4.6 from Roles and from IIS.
Now, I can't install it back using installer (because its part of OS so it is asking me to enable it from role & features). And I can't start server manager (to install role & features) because it needs .Net 4 at minimum.
My problem:On Windows Server 2016, the .NET Framework 4.6 had been inadvertently uninstalled from my system while trying to fix some issues with IIS. It was removed using the Server Manager > Remove Roles and Features.
As a result, the Power Shell, Server Manager, and Event Viewer were no longer working. So I downloaded and installed the latest offline version of the .NET Framework 4.7 from Microsoft using the installer. However, it did not fix the problem when installed by clicking on the installer.
SolutionTo fix the problem, I had to install it from the command line using the "/all" switch. I unzipped the installer to a folder and here is the command that I used to install it. In the last argument in quotes is the path to the installer, which will need to be modified based on where you have the installer unzipped:
I am trying to install .Net 3.5 on Windows Server 2012 and it constantly keeps failing. I am using "Add or Remove Features" and my Internet is already there. I've read that if alternate source couldn't be found, the installer tries to download online and installs it from there. However, it's not working. This is the screenshot that I keep seeing:
This worked for me. Windows has to download the 3.5 installation files, but the server is configured not to use Windows Update (common for managed servers), but WSUS. The above article describes how to fix this. In a nutshell:
I have tried everything suggested all over net - but nothing worked since I didn't have source disc. Luckily, I eventually remembered Web Platform Installer - download it, find .NET Framework 3 - install:
The feature still does not install even when I direct it to the SXS folder. I have program that use the 4.8 and the 3.51 together. I need to test this to get my companies programs to be certified. Anyone have any ideas. And Yes I have tried the DISM command line entry. Still no good.
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