Net framework for windows 7 latest version. What is Microsoft.NET Framework. How to install and reinstall the NET Framework

Microsoft. NET Framework — software platform for the computer, released by Microsoft in 2002. The basis of the platform is the CLR (Common Language Runtime) execution environment, capable of executing both regular programs, and server web applications.

The Microsoft .NET Framework supports the creation of programs written in different programming languages.

It is believed that the Microsoft .NET Framework platform was Microsoft's response to the Sun Microsystems (now owned by Oracle) Java platform, which had become very popular by that time.

The main idea when developing the Microsoft .NET Framework was to ensure developer freedom by providing him with the ability to create various types of applications that can run on various types devices and in different environments. The second principle was the focus on systems running a family of operating systems Microsoft Windows.

List of Microsoft .NET Framework versions

The first release of the Microsoft .NET Framework was released on January 5, 2002 for Microsoft Windows 98, Microsoft Windows NT 4.0, Microsoft Windows 2000, and Microsoft Windows XP. General support from Microsoft ended on July 10, 2007, and extended support ended on July 14, 2009.

The next release of the Microsoft .NET Framework was released on April 1, 2003. This was the first version that was automatically installed with the operating system (Microsoft Windows Server 2003). For older operating rooms Microsoft systems.NET Framework 1.1 was available as a separate installation package. General support from Microsoft ended on October 14, 2008, and extended support ended on October 8, 2013.

Version 2.0 was released simultaneously with Microsoft Visual Studio 2005, Microsoft SQL Server 2005 and Microsoft BizTalk 2006. With the release of version 2.0, support for custom (generic) classes, anonymous methods, and full support for 64-bit x64 and IA-64 platforms was added.

Initially, Microsoft .NET Framework 3.0 was named WinFX, which reflected its essence: an extension of Microsoft .NET Framework 2.0 with the preservation of all libraries and the addition of four new components:

Like version 3.0, Microsoft .NET 3.5 uses CLR version 2.0. New features compared to Microsoft .NET Framework 3.0 include:

Microsoft announced the Microsoft .NET Framework 4.0 on September 29, 2008. The first beta version appeared on May 20, 2009, along with the beta version of Microsoft Visual Studio 2010. New features include:

Parallel Extensions - PLINQ (Parallel LINQ) and the Task Parallel Library, designed to simplify programming for multiprocessor and distributed systems;

Innovations at Microsoft Visual Basic and C#;

Managed Extensibility Framework (MEF) technology;

Full support for , and F#;

Support for subsets of the Microsoft .NET Framework and ASP.NET in the Server Core version;

Code Contracts support;

Oslo modeling tools and the M programming language, designed for creating domain-specific languages and models;

The final version of the Microsoft .NET Framework 4.0 was released on April 12, 2010, along with the final version of Microsoft Visual Studio 2010.

During installation, it removes Microsoft .NET Framework 4.0. Not compatible with Microsoft Windows XP and later earlier versions Microsoft Windows. Innovations include:

The ability to reduce the number of system restarts by detecting and closing Microsoft .NET platform applications Framework versions 4 during deployment;

Supports arrays larger than 2 gigabytes (GB) on 64-bit platforms;

Improved performance with background garbage collection for servers. When you use server-side garbage collection in the Microsoft .NET Framework 4.5, background garbage collection is automatically enabled.

Background compilation on demand (JIT), which is optionally available on multi-core processors, to improve application performance;

Option to limit how long the regular expression engine will try to resolve regular expression before the timeout expires;

Ability to define the default culture for the application domain;

Unicode (UTF-16) encoding support in the console;

Support versioning of cultural data sorting and string comparison;

Improved performance when retrieving resources;

ZIP compression improvements;

Ability to customize reflection context to override default reflection behavior;

Support for the 2008 version of the Internationalized Domain Name Standard in applications when the class is used on Microsoft Windows 8;

Delegating string comparisons to an operating system that implements Unicode 6.0 when the Microsoft .NET Framework is used on Microsoft Windows 8. When running on other platforms, the Microsoft .NET Framework includes its own string comparison information that implements Unicode 5.x;

Ability to calculate hash code for strings based on domain for each application.

Microsoft .NET Framework 4.5.1

Microsoft .NET Framework 4.5.1 was released on October 17, 2013, along with Microsoft Visual Studio 2013. This version requires Microsoft Windows Vista Service Pack 2 or later, and comes with Microsoft Windows 8.1 and Microsoft Windows Server 2012 R2.

Microsoft .NET Framework 4.5.2

Microsoft .NET Framework 4.5.2 is Microsoft update.NET Framework 4.5.1, Microsoft .NET Framework 4.5, and Microsoft .NET Framework 4. Installed, if necessary, side by side with Microsoft .NET Framework 3.5 Service Pack 1.

Microsoft .NET Framework 4.6 is an update to Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.5.1, Microsoft .NET Framework 4.5, and Microsoft .NET Framework 4. Installed side-by-side with Microsoft .NET Framework 3.5 as needed. Service Pack 1.

Part of the Microsoft Visual Studio 2015 edition.

Microsoft .NET Framework 4.6 supports the new 64-bit JIT compiler (RyuJIT); WPF and WinForms have been updated to support high DPI screens; support for TLS 1.1 and TLS 1.2 has been added to WCF. The cryptographic API in Microsoft .NET Framework 4.6 uses the latest version of the Microsoft CryptoAPI API, thanks to which a set of “Suite B” encryption algorithms has become available - AES, SHA-2, Elliptic curve Diffie-Hellman, ECDSA.

Microsoft .NET Framework 4.6.1

Microsoft .NET Framework 4.6.1 is an update to Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.5.1, Microsoft .NET Framework 4.5, and Microsoft .NET Framework 4. Installed, if necessary, side by side side by side with Microsoft .NET Framework 3.5 Service Pack 1.

Part of Microsoft Visual Studio 2015 Update 1.

Microsoft .NET Framework 4.6.2

Note

Do not install multilingual versions of the Microsoft .NET Framework on the same computer.

When purchasing a computer, users often encounter some difficulties when installing software. Individual applications do not want to be installed without first installing NET.Framework. Not understanding why this is happening, they begin to re-install the software, but all actions will end in constant failures.

Users very often have problems with NET.Framework

This is quite simple to explain, since some programs and applications can only be installed on the NET.Framework platform, which is Microsoft product. Beginner users may hear the term “framework” for the first time; they don’t even understand what it is, so in order to solve the problem that has arisen, you should first familiarize yourself with additional information.

Like any other software application, NET.Framework can be installed if there is a download file available, which can be found using the Internet. Only when performing a search is it important to remember that for correct operation applications, it is advisable to install the latest versions of any software product, including the NET.Framework platform.

After downloading the installation file before proceeding practical actions, inexperienced users recommend studying the information on how to install the NET Framework. This will help you avoid serious mistakes.

Installation algorithm

Currently, almost every computer equipped with the Windows operating system already has a certain version of the platform installed. However, despite this, some applications refuse to install. This happens for the reason that installed version outdated.

To resolve such issues, it is important to install the version of NET.Framework recommended by the developers software application which you need to install on your PC.

The installation process itself is simple if you do not skip a single step of the algorithm. Initially, you should save the downloaded pre-boot file to your computer, then right-click on it, and in the window that opens, select the line “Run as administrator”. Some versions of NET.Framework cannot be installed unless you select this important option.

After this, unpacking will begin. boot files, after which the NET.Framework icon will appear on the screen, indicating to the user that the installation process has started.

In the next window, it is important to check the box next to the phrase “I have read and accept the terms and conditions license agreement", then click on the "Install" button.

Next, you should have a little patience and just watch how the platform is installed on your computer. The installation process is accompanied by a gray line that gradually fills green. As soon as it turns completely green, the installation is completed and the system will prompt you to reboot.

Restarting the computer is very important, since most programs and applications urgently need it, otherwise the system simply will not see the changes made.

Removal process

As a result incorrect installation previous version The framework or its system files are damaged, there is a need to re-install NET.Framework.

Many users may be misled into thinking that uninstalling the Framework can be done quickly and easily. However, having started practical actions, they encounter difficulties that they cannot resolve on their own, so users try to find information on how to remove the NET Framework if necessary.

Removal algorithm

The Framework removal process can be accomplished in several ways. One of them is running experienced users manually, which completely removes all system files, the cache and registry are cleared. For users who do not have sufficient experience and are not armed with the necessary knowledge, but who want to do everything on their own, it is best to use some utilities that automate the uninstallation process.

If you want to remove the Framework without resorting to third-party resources, you should carefully study the uninstallation algorithm.

To remove NET.Framework 2.0 from Windows cache you need to run the “Run” command, which can be easily found by selecting the “Start” menu.

In the window that opens, write “installer” in the line provided. This command calls Windows installer. In the new window that opens, you should find the “Comments” column, which you need to carefully review to find “Microsoft .NET Framework 2.0 RTL x86 enu”. This is the comment that should be removed.

The third time, running the “Run” command, “microsoft.net” is entered. As a result of this, the following folder “Microsoft.NET” is displayed, in which there are several subfolders, among which it is important to find and then open “Framework”. Already in it you still need to find one subfolder “v2.0.50727”, which should also be deleted.

The next step is to clean the registry, which can be opened by running the “regedit” command. Registry lines that mention the Framework must be deleted.

And only now, when all the steps of the algorithm have been successfully completed, the user can be sure that the “traces” of the Framework have been successfully and irrevocably deleted; accordingly, they can proceed to new installation platforms.

Update process

It also happens that, even understanding what the NET Framework is, having installed it on a computer, users still encounter certain problems. Such difficulties are due to the fact that the user was able to install the Framework successfully, but this only happened quite a long time ago. For very for a long time New versions of the Framework have appeared, which new applications are oriented towards. Naturally, in this case it will not be possible to install them, since the platform does not meet the requirements.

It is in this regard that there is a desire to know how to update the NET Framework.

Update problems

Wanting to update NET.Framework, the user may also encounter problems, since the update principle itself is somewhat different from the same process, but oriented towards something else software.

In particular, it is enough to launch many programs, then click on the “Update” line, and only the missing files, the databases will also be updated, after which the program will immediately be designated as a new version.

Unfortunately, it will not be possible to apply the same scheme to NET.Framework. The developers point out that in reality you can only delete old versions and install a new one, which you previously managed to download and save on your hard drive.

In this regard, if there is such a desire, it is important to use the removal algorithm first, and then immediately the platform installation algorithm.

So, realizing how important current version NET.Framework platform, the user can independently carry out a number of sequential actions, upon completion of which they will be able to achieve their goals.

The Microsoft .NET Framework is designed for programs that run on the ".NET" architecture. Its first version was released in 2002 as an analogue for the popular Java technology. This platform from Microsoft supports various programming languages, so it is widely used in creating programs and applications. In addition, the Microsoft.Net Framework is built into every Windows OS to support the installation of these programs. It is worth noting that versions of this platform are periodically updated and improved, and the built-in versions in Windows XP, Vista and 7 are outdated. Therefore, you can download a new one Microsoft version.NET Framework with all additions and changes for the correct operation of applications.

Possibilities:

using this platform to develop various applications;
support different types applications;
usage different languages programming;
installation on different operating systems;
ensuring the functionality of applications.

Working principle:

Now let's take a closer look at this platform. Main Microsoft feature.NET Framework - the ability to create web applications. In addition, you can create Windows Forms applications, console applications, and Windows services. The components of the platform are the Common Language Runtime (CLR), a class library and ASP.NET.

The CLR component is designed to run web services and applications, supporting various programming languages. Above the CLR there is a class library that is designed to perform software tasks, for example, to interact with OS processes and work with XML files.

A separate class library with which you can create web applications is called ASP.NET.

In terms of operating systems, you can install Microsoft .NET Framework for Windows 10,8,8, XP and Vista.

Pros:

creation of web applications;
creating Windows services;
Creation Windows applications Forms;
support for different programming languages;
support for different operating systems;
the ability to download Microsoft .NET Framework for free to your computer;
simple and convenient interface.

Cons:

new versions of the platform are not installed on old Windows operating systems (for example, XP);
greater demands on computer resources than similar technologies.

Overall, it is a powerful platform for creating different types of applications. As a rule, this platform is available by default on every Windows system, but to fully support all changes and innovations, it is recommended to download the latest version of the Microsoft .NET Framework for free. However, please note that versions 4.5 and higher are not compatible with Windows XP. Therefore, if you have this particular operating system, we advise you to install version 4.0.

When installing new software or operating system updates, in some cases you may need to download files for the .NET Framework. Sometimes this operation fails. Let's try to understand what this component is and how to update the .NET Framework so that everything works correctly.

Microsoft .NET Framework: what is it?

The Microsoft.NET Framework itself is present in operating systems Windows family.Initially, this platform was developed by Microsoft specialists to create applications, programs, use safe means communications and much more. Over time, this platform has turned into a universal tool that allows you to ensure compatibility of programs written in various languages programming. Speaking in simple words, If specific application or the program is not designed to function in Windows environment, then when using the Microsoft.NET Framework as an intermediary or bridge this program will be able to start up and work fully. As for the update issue, by default the .NET Framework can only be updated in manual mode. When system updating is enabled, packages for this platform will simply not be installed. The updates themselves, as a rule, concern mainly the protection and security systems. How to do this will be shown below.

Service packs: composition

Microsoft.NET Framework can update not only software modules, but also the main components of the development environment. If new features become available or additional structures are supported, they will also be installed. Most often in the list of updates you can notice improvements to the following components:

CLR – responsible for improving performance multi-core processors, recognition of numeric data and new file types, lightweight mixed-mode debugging, including minidumps and dumps;
VisualBasic and C+/++ - allows you to work with implicit line continuations, new operators and dynamic dispatch;
Composite EntityFramework and WCF services - responsible for modeling and simplified data access;
ASP.NET extension - responsible for managing CSS and HTML identifiers, templates, dynamic data components, filters and web forms based on the AJAX library;
Composite WFP modules – provide multi-touch input, flexible scalability, SDK support and visual presentation;
Windows Workflow – project and process support, modeling styles;
WCF - correlation-based action programming, responsible for the performance of worker processors;
PLNQ queries and TPL library - parallel programming.

The full list of updates can be found on the official Microsoft website.

How to Upgrade .NETFramework to 4.0: Initial Conditions

Now let's discuss the update process itself. You can upgrade the Microsoft .NET Framework only if the system meets the fully defined initial conditions. IN mandatory it must contain the operating system installer Windows systems version no lower than 3.1, and also Internet browser Explorer versions 5.01 and higher. If these components are not in the system, then first of all you will need to update them, and only after that install updates for the entire platform as a whole. Also prerequisite is the availability of service packs and the latest installed updates for the operating systems themselves. If for some reason they were not installed in automatic mode, you need to set up a manual search in the Update Center, and then integrate the found components into the system.

.NET Framework 4.5 Update: system requirements

When installing updates, you need to pay attention to the presence free space on the disk, as well as the system configuration. Operating systems of the Windows family ranging from XP to 10 with x86, x64 and ia64 architecture are supported (some components are not supported by the system or are not available at all). The minimum configuration must use a processor with clock frequency from 1 GHz and above, RAM volume from 512 MB, 850 MB of free disk space for 32-bit systems and 2 GB for 64-bit systems.

Update process

In some cases, during the application installation process, a message appears indicating that the .NET Framework must be updated to function correctly. Here it is worth paying attention to one interesting point. The problem is that the installation new version has nothing to do with the update process as such. A new version of the platform is simply installed. The installer first removes the old modification and only then starts installing the new version. In some cases, before installing a newer version, you may need to manually remove the previous modification. This mainly applies to the WindowsXP operating system. The .NET Framework can only be updated if you download it first installation distribution from the official website of Microsoft Corporation. It is better not to take it from other sources, as it may be an incomplete modification in terms of functionality, infected with malicious codes and viruses. Before unpacking the archive containing the installer and its direct launch you need to check the files using antivirus scanner. After downloading the file, you must run it as an administrator and wait for the installation process to complete.

Updating problems and methods to resolve them

Despite the apparent simplicity of the update process, certain problems may arise during installation. Most often this concerns version 4.0. The installer may display a message indicating that the installation was not completed. Of course, you can try rebooting the system and trying to perform the installation again, but in most cases the effect of such a procedure will be zero. Therefore, to fix problems, you can update the .NET Framework as follows: run the command line from the Run menu and enter the netstop Wu AuServ command in it. After this, you need to find the folder Software Distribution in the root directory of the system and rename it, for example, to SDold. After this, you must enter net WuAuServstart on the command line and repeat the installation. This technique allows you to completely eliminate the problem in 99.9% of cases.

Instead of a conclusion

As you can see for yourself, there is nothing difficult about updating the .NET Framework. The main thing here is to take into account the system requirements that apply to computers for its correct functioning, to install latest updates for the operating system itself and pay attention to the installed version if the package was not downloaded from official resource, but from other sources. If errors or failures occur, the described technique provides a 100% guarantee that the situation will be corrected.

Installation Instructions

- Note. Windows 8 and Windows Server 2012 include the .NET Framework 4.5. Therefore, installation of this software on these operating systems is not required.
  - On this page click the button Download.

Service Pack 3 (SP3) for the 2007 Microsoft Office suite of applications

Installation Instructions

- Note. IT professionals should refer to Resources for IT Professionals.
  Installation Instructions
  If you have the 2007 edition of the application suite installed on your computer Microsoft Office, do one of the following:
  You can download this update using the button Download at the top of the page. To begin installation, double click executable file or extract the patch files (.msp files) using command line. For command syntax and instructions on using the command line, see the knowledge base article.
  More information For information about this update, see the Microsoft Knowledge Base article.