We install or update, fix errors. Installing or updating, fixing errors Installation via Windows Update
This article discusses ways in which you can install (enable) the .NET Framework 3.5 and .NET Framework 4.5 component in the Windows 10 operating system
.NET Framework is a software platform that is part of many applications and provides functionality to run those applications. If you are using a Windows operating system, then the .NET Framework may already be installed on your computer. In particular, the version .NET Framework 4.5 included in Windows 8 version .NET Framework 4.5.1 included in , and version .NET Framework 4.6 included in
However, the platform .NET Framework 3.5 is not automatically installed with Windows 8, Windows 8.1, or Windows 10 and must be enabled separately.
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If the application requires .NET Framework 3.5 and it does not find this version on the computer, during installation or when you first launch the application, the following dialog box is displayed. In the message box, select Download and install this component to enable .NET Framework 3.5
How to Install .NET Framework 3.5 in Windows Features
You can enable .NET Framework 3.5 yourself in the Windows Features window
This option requires an Internet connection.
In the window that opens Windows components check the box .NET Framework 3.5 (includes .NET 2.0 and 3.0), press the button OK
The installation process for the .NET Framework 3.5 component will begin.
You do not need to select children to activate Windows Communication Foundation (WCF) HTTP unless you are a developer who requires the WCF script and handler mapping functionality.
When the installation process is complete, click the button Close
If for some reason the above method does not suit you, then you can download the official .NET Framework 3.5 installer from the link from the official Microsoft website ➯ https://www.microsoft.com/ru-ru/download/details.aspx?id=21(do not pay attention to the fact that Windows 10 is not in the list of supported systems; everything is installed successfully).
How to Install .NET Framework 3.5 on Windows 10 Using DISM
If there is no Internet connection, the platform .NET Framework 3.5 can be enabled using the command line tool "Image Servicing, Deployment and Management" (DISM) by specifying the media (USB drive, ISO image or DVD) from which Windows 10 was installed
To install the .Net Framework 3.5 using DISM, run as administrator and run the following command:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:F :\sources\sxs
Where F is the drive letter with the Windows 10 distribution (or the path to the unpacked distribution)
After some time the component .Net Framework will be installed, restart Windows to complete the operation.
Another installation method .NET Framework 3.5 in Windows 10, which you can use, is presented in the article ➯
How to Install .NET Framework 4.5 on Windows 10
Windows 10 includes .NET Framework 4.6 by default, which in turn is compatible with versions 4.5, 4.5.1 and 4.5.2. In other words, if you install a later version, such as .NET Framework 4.6, you do not need to first install previous versions, such as .NET Framework 4.5, 4.5.1, or 4.5.2. Likewise, if you install a later version, such as .NET Framework 4.6, you do not need to first uninstall previous versions, such as .NET Framework 4.5, 4.5.1, or 4.5.2.
If for some reason .NET Framework 4.6 is disabled on your system, you can simply enable it for installation.
You can also download these components separately as standalone installers from the official Microsoft website:
If for some reason the proposed installation methods do not work, then you can use additional options that will help correct the situation:
■ On the same page, in the 3rd paragraph, it is suggested to download the utility .NET Framework Cleanup Tool, which completely removes all .NET Framework packages from the computer. This may allow errors to be corrected when they are reinstalled. Also useful if you receive a message that .Net Framework 4.5 is already part of the operating system and installed on your computer
If you just upgraded to Windows 10, you may notice that some programs require earlier versions of the Microsoft .NET framework that are not included in the latest version of Windows. This requirement prevents programs from running on Windows 10 by default and will throw errors such as 0x800f0950, 0x800F0906, 0x800F0907, 0x800F0922, 0x800F081F. In some cases, Windows may automatically detect and prompt you to install the version that is required, but this is not always the case. In most cases, you will need to install this feature manually. But don't worry - you can do it easily with the information contained in this article.
Installation via Windows Update
Open Control Panel and click Programs uninstalling programs".
- Click on the left on Turn Windows features on or off.
- Check the "NET Framework 3.5 (including .NET 2.0 and 3.0)" checkbox and click "OK". You can leave the other settings as they are.
- Windows 10 will then connect to Windows Update to be able to install NET Framework 3.5 on your computer or laptop.
- You may need to restart your computer to complete the installation.
Manual installation via Windows 10 installation media
If you have Windows 10 installation media, you can use it to install earlier versions of the .NET framework. It's much faster and does not require an Internet connection. If you have the Windows 10 system itself, but there is no way to write it to a flash drive as an installation system, then you can simply mount it into a virtual drive.
- Insert the Windows 10 installation flash drive into your computer or mount the image into a virtual drive.
- Open Explorer, aka “my computer” and remember what letter the installation system is under (flash drive or drive).
- Open a command prompt as an administrator by typing in windows the word cmd and right-click, " run as administrator".
- Next, enter the following command in the cmd window, where the letter H This is your installation flash drive or virtual drive:
- Dism /online /enable-feature /featurename:NetFX3 /All /Source:H:\sources\sxs /LimitAccess
After a few seconds, the installation will complete. You may want to restart your computer to be sure.
Windows 7 and 8.1 systems must be installed with an integrated version 4.5 of the .NET Framework software platform, which is necessary for the full operation of some programs and games. And Windows 10 must initially contain a pre-installed version of the 4.6 platform, compatible with its predecessor version 4.5. The old version of the .NET Framework 3.5, which is required to run programs and games that are usually not supported by developers for a long time, is not included in current versions of Windows. Naturally, this means that the operating system was installed from the original distribution image. With non-original distributions, everything may be different: the operating system may either contain several versions of the .NET Framework, including the old 3.5, or be delivered without individual pre-installed system components, similar to a stripped-down Windows build.
The old .NET Framework 3.5 is installed as a separate step when installing programs based on the architecture of this version of the platform into the system. The installation of the latter can also be started manually by the user. What needs to be done for this? Open the control panel. In the latter window, look for the “Programs and Features” section. To make it faster, in Windows 7 the name of the section can be entered as a search query in the search bar of the Start menu. And in Windows 8.1 and 10, direct access to this section is provided in the menu called up with the Win+X keys. In the window that opens, click the link shown in the screenshot below.
A small window will appear with a list of system components. Here you need to activate the .NET Framework 3.5 version checkbox and click “OK”.
However, the process of downloading and installing the platform will not end successfully in every case.
How do I resolve problems that may arise during the installation of the .NET Framework 3.5?
1. Download the installer from the Microsoft website
If .NET Framework 3.5 does not install using the above method, you can try to solve the problem by running the platform installer downloaded.
2. Start the Update Center service
Platform installation error 0x800F081F is usually a consequence of previously disabling the Windows Update service. If system updates were disabled or, perhaps, special tweaker programs were used in Windows 10 for these purposes, you need to start the Center service. The System Services section can be opened using the Run command. Enter in its field:
At the very bottom of the list of services is the Center service. Double click to open it.
Let's start the service. Applying the changes.
After this, you must try again to install the platform using any of the methods discussed above.
3. Using DISM
The methods discussed above for troubleshooting problems that arise when installing the .NET Framework 3.5 require an Internet connection. If there is no Internet connection, you can use the Windows distribution to install the software platform. The method discussed below is also suitable for cases where, when trying to install the platform, you receive an error message 0x800F0906.
We connect the distribution kit of the version of Windows that is installed on the computer. Either we connect a flash drive, or insert a DVD into the drive, or mount the ISO image into a virtual drive. Versions of Windows 8.1 and 10, among the standard functionality, provide the ability to mount ISO images and display them as disk partitions. To do this, select “Connect” in the context menu on the Windows distribution ISO file.
Before further actions, you need to establish how the distribution media is listed in Explorer. Then paste the copied command into the command line:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs
We edit the command: instead of the drive letter D, as in the example given, we substitute our own drive letter, DVD drive, or mounted ISO image. Press Enter.
After the command execution progress reaches 100%, we can close the command line and try again to install the platform using the method described at the beginning of the article.
Have a great day!
A set of libraries and system components that are necessary for running applications based on the architecture .NET Framework. This package is a cumulative update that contains many new features based on the platforms .NET Framework 2.0, .NET Framework 3.0, .NET Framework 3.5, and includes cumulative service updates for subcomponents .NET Framework 2.0 And .NET Framework 3.0.
Microsoft .NET Framework 3.5 SP1 contains the following new features and enhancements:
Dynamic data ASP.NET , which provide a rich scaffolding platform that enables data-driven development without writing code. They also contain a new addition to ASP.NET AJAX , which provides support for managing browser history (back button support).
Basic Common Language Runtime (CLR) improvements, including: Improved native image layout .NET Framework; avoiding strict name checking for fully trusted assemblies; improved performance when launching applications; Improved code generation that reduces the execution time of completed applications; and the ability to execute managed code in ASLR mode (injecting randomness into the address space structure), if supported by the operating system. Additionally, managed applications opened from network shares behave like native applications by running with full trust.
Performance Enhancements WPF (Windows Presentation Foundation ), including reduced startup time and improved effects performance for bitmaps. Additional features include WPF– Improved support for business applications, support for native splash screens, support for texture builders and a new control WebBrowser.
Application Publishers ClickOnce may choose not to sign and hash applications if this option better suits their scenarios. Developers can programmatically install applications ClickOnce, showing custom brand information. Error Dialogs ClickOnce maintain links to application-specific support sites on the Internet.
- Entity Framework– development of the existing set of data access technologies ADO.NET . Entity Framework allows developers to program relational database operations according to application-specific domain models rather than underlying database models. Entity Framework introduces some additional features, including support for new types SQL Server 2008, default Entity graph serialization and entity data source. This version of Entity Framework supports new SQL streaming capabilities Server 2008 for dates and files. Working with graph serialization makes it easier for developers to build services (WCF) using modeling of complete graphs as data contracts. The entity data source allows web application creators who want to work with Entity Framework, use traditional methods of working with a data source to ASP.NET.
LINQ to SQL supports new streaming capabilities SQL Server 2008 for dates and files.
Data Services Platform ADO.NET consists of a combination of templates and libraries that allow data to be represented as a flexible data service based on technology REST , which can be consumed by web clients on corporate networks or the Internet. Data Services Platform ADO.NET allows you to create data services from any data sources. A conceptual model for viewing the underlying storage layout can be easily made accessible through rich integration with ADO.NET Entity Framework. Services built using the Data Services Platform ADO.NET, as well as compatible services Windows Live (dev.live.com ), easily accessible from any platform. A set of client libraries is available for client applications running on Microsoft platforms to simplify interaction with data services. For example, clients based on .NET Framework, can use LINQ to query data services and a simple object layer .NET Framework to update data in the service.
- Windows Communication Foundation now makes use of the serializer DataContract easier thanks to improved interoperability support. It improves debugging in partial trust scenarios and expands protocol support RSS, allowing for wider use in applications Web 2.0.
Data Provider .NET Framework For SQL Server(SqlClient) adds support for the ability to use file streams and sparse columns in SQL Server 2008.
Microsoft .NET Framework is a digital platform that allows you to create, launch correctly and use various applications or games, during the creation of which parts of one specific application are written in different program codes. This platform is a digital environment in which different codes of a single application are compiled into one transferable code, which in turn is understandable by the Framework itself. Then the moving code is compiled into understandable code for the operating system for which the application was developed. For example for Windows 7/8/10
You can install this platform in various ways.
- By installing an operating system whose update package already includes this platform.
- Download Net Framework and then install. (Official links on our website)
- Install as additional software when installing the game.
- Install automatically using Windows Update
There are cases: When starting a game or application, a window with approximate content pops up on the screen: “(application name) requires the presence of. NO Framework. Please download and install Net Framework 3.5 or higher." Which makes running this application impossible without this platform. If you have Microsoft Net Framework 4.7 installed, this does not mean that you do not need older versions. You will need to install both Microsoft Net Framework 4 and previous versions. It is highly recommended to install all existing ones regarding your operating system.
Select and install the versions you need for Windows XP, Vista, 7, 8,10
Microsoft .NET Framework 1.0
Download Microsoft .NET Framework 1.0 for 32/64 bit
Microsoft .NET Framework 1.1
Download Microsoft .NET Framework 1.1 for 32/64 bit
Microsoft .NET Framework 2.0
For 32 bit
Download Microsoft .NET Framework 2.0 for 64 bit
Microsoft .NET Framework 3.0
Download Microsoft .NET Framework 3.0 for 32/64 bit
Microsoft .NET Framework 3.5
Download Microsoft .NET Framework 3.5 for 32/64 bit
Microsoft .NET Framework 4.0
Download Microsoft .NET Framework 4.0 for 32/64 bit
Microsoft .NET Framework 4.5
Download Microsoft .NET Framework 4.5 for 32/64 bit
Microsoft .NET Framework 4.5.1
Download Microsoft .NET Framework 4.5.1 for 32/64 bit
Microsoft .NET Framework 4.5.2
Download Microsoft .NET Framework 4.5.2 for 32/64 bit
Microsoft .NET Framework 4.6
Download Microsoft .NET Framework 4.6 for 32/64 bit
Microsoft .NET Framework 4.6.1
Download Microsoft .NET Framework 4.6.1 for 32/64 bit
Microsoft .NET Framework 4.6.2
Download Microsoft .NET Framework 4.6.2 for 32/64 bit
Microsoft .NET Framework 4.7
Download Microsoft .NET Framework 4.7 for 32/64 bit
Microsoft .NET Framework 4.7.1
Download Microsoft .NET Framework 4.7.1 for 32/64 bit
Version 3.5, which includes earlier ones, and version 4.7.1 (the latest at the moment) must be installed.
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