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If you haven't downloaded and installed Visual Studio and the Visual C++ tools yet, here's how to get started.

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Visual Studio 2019 Installation

Welcome to Visual Studio 2019! In this version, it's easy to choose and install just the features you need. And because of its reduced minimum footprint, it installs quickly and with less system impact.


This topic applies to installation of Visual Studio on Windows. Visual Studio Code is a lightweight, cross-platform development environment that runs on Windows, Mac, and Linux systems. The Microsoft C/C++ for Visual Studio Code extension supports IntelliSense, debugging, code formatting, auto-completion. Visual Studio for Mac doesn't support Microsoft C++, but does support .NET languages and cross-platform development. For installation instructions, see Install Visual Studio for Mac.

Want to know more about what else is new in this version? See the Visual Studio release notes.

Ready to install? We'll walk you through it, step-by-step.

Step 1 - Make sure your computer is ready for Visual Studio

Before you begin installing Visual Studio:

  1. Check the system requirements. These requirements help you know whether your computer supports Visual Studio 2019.

  2. Apply the latest Windows updates. These updates ensure that your computer has both the latest security updates and the required system components for Visual Studio.

  3. Reboot. The reboot ensures that any pending installs or updates don't hinder the Visual Studio install.

  4. Free up space. Remove unneeded files and applications from your %SystemDrive% by, for example, running the Disk Cleanup app.

For questions about running previous versions of Visual Studio side by side with Visual Studio 2019, see the Visual Studio 2019 Platform Targeting and Compatibility page.

Step 2 - Download Visual Studio

Next, download the Visual Studio bootstrapper file. To do so, choose the following button, choose the edition of Visual Studio that you want, choose Save, and then choose Open folder.

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Step 3 - Install the Visual Studio installer

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Run the bootstrapper file to install the Visual Studio Installer. This new lightweight installer includes everything you need to both install and customize Visual Studio.

  1. From your Downloads folder, double-click the bootstrapper that matches or is similar to one of the following files:

    • vs_community.exe for Visual Studio Community
    • vs_professional.exe for Visual Studio Professional
    • vs_enterprise.exe for Visual Studio Enterprise

    If you receive a User Account Control notice, choose Yes.

  2. We'll ask you to acknowledge the Microsoft License Terms and the Microsoft Privacy Statement. Choose Continue.

Step 4 - Choose workloads

After the installer is installed, you can use it to customize your installation by selecting the workloads, or feature sets, that you want. Here's how.

  1. Find the workload you want in the Installing Visual Studio screen.

    For core C++ support, choose the 'Desktop development with C++' workload. It comes with the default core editor, which includes basic code editing support for over 20 languages, the ability to open and edit code from any folder without requiring a project, and integrated source code control.

    Additional workloads support other kinds of C++ development. For example, choose the 'Universal Windows Platform development' workload to create apps that use the Windows Runtime for the Microsoft Store. Choose 'Game development with C++' to create games that use DirectX, Unreal, and Cocos2d. Choose 'Linux development with C++' to target Linux platforms, including IoT development.

    The Installation details pane lists the included and optional components installed by each workload. You can select or deselect optional components in this list. For example, to support development by using the Visual Studio 2017 or 2015 compiler toolsets, choose the MSVC v141 or MSVC v140 optional components. You can add support for MFC, the experimental Modules language extension, IncrediBuild, and more.

  2. After you choose the workload(s) and optional components you want, choose Install.

    Next, status screens appear that show the progress of your Visual Studio installation.


At any time after installation, you can install workloads or components that you didn't install initially. If you have Visual Studio open, go to Tools > Get Tools and Features.. which opens the Visual Studio Installer. Or, open Visual Studio Installer from the Start menu. From there, you can choose the workloads or components that you wish to install. Then, choose Modify.

Step 5 - Choose individual components (Optional)

If you don't want to use the Workloads feature to customize your Visual Studio installation, or you want to add more components than a workload installs, you can do so by installing or adding individual components from the Individual components tab. Choose what you want, and then follow the prompts.

Step 6 - Install language packs (Optional)

By default, the installer program tries to match the language of the operating system when it runs for the first time. To install Visual Studio in a language of your choosing, choose the Language packs tab from the Visual Studio Installer, and then follow the prompts.

Change the installer language from the command line

Another way that you can change the default language is by running the installer from the command line. For example, you can force the installer to run in English by using the following command: vs_installer.exe --locale en-US. The installer will remember this setting when it's run the next time. The installer supports the following language tokens: zh-cn, zh-tw, cs-cz, en-us, es-es, fr-fr, de-de, it-it, ja-jp, ko-kr, pl-pl, pt-br, ru-ru, and tr-tr.

Step 7 - Change the installation location (Optional)

You can reduce the installation footprint of Visual Studio on your system drive. You can choose to move the download cache, shared components, SDKs, and tools to different drives, and keep Visual Studio on the drive that runs it the fastest.


You can select a different drive only when you first install Visual Studio. If you've already installed it and want to change drives, you must uninstall Visual Studio and then reinstall it.

Step 8 - Start developing

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  1. After Visual Studio installation is complete, choose the Launch button to get started developing with Visual Studio.

  2. On the start window, choose Create a new project.

  3. In the search box, enter the type of app you want to create to see a list of available templates. The list of templates depends on the workload(s) that you chose during installation. To see different templates, choose different workloads.

    You can also filter your search for a specific programming language by using the Language drop-down list. You can filter by using the Platform list and the Project type list, too.

  4. Visual Studio opens your new project, and you're ready to code!

Visual Studio 2017 Installation

In Visual Studio 2017, it's easy to choose and install just the features you need. And because of its reduced minimum footprint, it installs quickly and with less system impact.


  • A broadband internet connection. The Visual Studio installer can download several gigabytes of data.

  • A computer that runs Microsoft Windows 7 or later versions. We recommend Windows 10 for the best development experience. Make sure that the latest updates are applied to your system before you install Visual Studio.

  • Enough free disk space. Visual Studio requires at least 7 GB of disk space, and can take 50 GB or more if many common options are installed. We recommend you install it on your C: drive.

For details on the disk space and operating system requirements, see Visual Studio Product Family System Requirements. The installer reports how much disk space is required for the options you select.

Download and install

  1. Download the latest Visual Studio 2017 installer for Windows.


    The Community edition is for individual developers, classroom learning, academic research, and open source development. For other uses, install Visual Studio 2017 Professional or Visual Studio 2017 Enterprise.

  2. Find the installer file you downloaded and run it. It may be displayed in your browser, or you may find it in your Downloads folder. The installer needs Administrator privileges to run. You may see a User Account Control dialog asking you to give permission to let the installer make changes to your system; choose Yes. If you're having trouble, find the downloaded file in File Explorer, right-click on the installer icon, and choose Run as Administrator from the context menu.

  3. The installer presents you with a list of workloads, which are groups of related options for specific development areas. Support for C++ is now part of optional workloads that aren't installed by default.

    For C++, select the Desktop development with C++ workload and then choose Install.

  4. When the installation completes, choose the Launch button to start Visual Studio.

    The first time you run Visual Studio, you're asked to sign in with a Microsoft Account. If you don't have one, you can create one for free. You must also choose a theme. Don't worry, you can change it later if you want to.

    It may take Visual Studio several minutes to get ready for use the first time you run it. Here's what it looks like in a quick time-lapse:

    Visual Studio starts much faster when you run it again.

  5. When Visual Studio opens, check to see if the flag icon in the title bar is highlighted:

    If it's highlighted, select it to open the Notifications window. If there are any updates available for Visual Studio, we recommend you install them now. Once the installation is complete, restart Visual Studio.

Visual Studio 2015 Installation

To install Visual Studio 2015, go to Download older versions of Visual Studio. Run the setup program and choose Custom installation and then choose the C++ component. To add C++ support to an existing Visual Studio 2015 installation, click on the Windows Start button and type Add Remove Programs. Open the program from the results list and then find your Visual Studio 2015 installation in the list of installed programs. Double-click it, then choose Modify and select the Visual C++ components to install.

In general, we highly recommend that you use Visual Studio 2017 even if you need to compile your code using the Visual Studio 2015 compiler. For more information, see Use native multi-targeting in Visual Studio to build old projects.

When Visual Studio is running, you're ready to continue to the next step.

Next Steps


The #define creates a macro, which is the association of an identifier or parameterized identifier with a token string. After the macro is defined, the compiler can substitute the token string for each occurrence of the identifier in the source file.


#defineidentifier(identifieropt, .. ,identifieropt)token-stringopt


The #define directive causes the compiler to substitute token-string for each occurrence of identifier in the source file. The identifier is replaced only when it forms a token. That is, identifier is not replaced if it appears in a comment, in a string, or as part of a longer identifier. For more information, see Tokens.

The token-string argument consists of a series of tokens, such as keywords, constants, or complete statements. One or more white-space characters must separate token-string from identifier. This white space is not considered part of the substituted text, nor is any white space that follows the last token of the text.

A #define without a token-string removes occurrences of identifier from the source file. The identifier remains defined and can be tested by using the #if defined and #ifdef directives.

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The second syntax form defines a function-like macro with parameters. This form accepts an optional list of parameters that must appear in parentheses. After the macro is defined, each subsequent occurrence of identifier( identifieropt, .., identifieropt ) is replaced with a version of the token-string argument that has actual arguments substituted for formal parameters.

Formal parameter names appear in token-string to mark the locations where actual values are substituted. Each parameter name can appear multiple times in token-string, and the names can appear in any order. The number of arguments in the call must match the number of parameters in the macro definition. Liberal use of parentheses guarantees that complex actual arguments are interpreted correctly.

The formal parameters in the list are separated by commas. Each name in the list must be unique, and the list must be enclosed in parentheses. No spaces can separate identifier and the opening parenthesis. Use line concatenation — place a backslash () immediately before the newline character — for long directives on multiple source lines. The scope of a formal parameter name extends to the new line that ends token-string.

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When a macro has been defined in the second syntax form, subsequent textual instances followed by an argument list indicate a macro call. The actual arguments that follows an instance of identifier in the source file are matched to the corresponding formal parameters in the macro definition. Each formal parameter in token-string that is not preceded by a stringizing (#), charizing (#@), or token-pasting (##) operator, or not followed by a ## operator, is replaced by the corresponding actual argument. Any macros in the actual argument are expanded before the directive replaces the formal parameter. (The operators are described in Preprocessor operators.)

The following examples of macros with arguments illustrate the second form of the #define syntax:

Arguments with side effects sometimes cause macros to produce unexpected results. A given formal parameter may appear more than one time in token-string. If that formal parameter is replaced by an expression with side effects, the expression, with its side effects, may be evaluated more than one time. (See the examples under Token-Pasting Operator (##).)

The #undef directive causes an identifier's preprocessor definition to be forgotten. See The #undef Directive for more information.

If the name of the macro being defined occurs in token-string (even as a result of another macro expansion), it is not expanded.

A second #define for a macro with the same name generates a warning unless the second token sequence is identical to the first.

Microsoft Specific

Microsoft C/C++ lets you redefine a macro if the new definition is syntactically identical to the original definition. In other words, the two definitions can have different parameter names. This behavior differs from ANSI C, which requires that the two definitions be lexically identical.

For example, the following two macros are identical except for the parameter names. ANSI C does not allow such a redefinition, but Microsoft C/C++ compiles it without error.

On the other hand, the following two macros are not identical and will generate a warning in Microsoft C/C++.

END Microsoft Specific

This example illustrates the #define directive:

The first statement defines the identifier WIDTH as the integer constant 80 and defines LENGTH in terms of WIDTH and the integer constant 10. Each occurrence of LENGTH is replaced by (WIDTH + 10). In turn, each occurrence of WIDTH + 10 is replaced by the expression (80 + 10). The parentheses around WIDTH + 10 are important because they control the interpretation in statements such as the following:

After the preprocessing stage the statement becomes:

which evaluates to 1800. Without parentheses, the result is:

which evaluates to 280.

Microsoft Specific

Defining macros and constants with the /D compiler option has the same effect as using a #define preprocessing directive at the start of your file. Up to 30 macros can be defined by using the /D option.

END Microsoft Specific

See also