LabVIEW 2021 Readme for Windows

July 2021

This file contains installation instructions and compatibility information for LabVIEW.

You can find more release information on

  • LabVIEW Release Notes: Known issues, bugs fixed since the last release, and other notes about this release
  • LabVIEW Manuals: New features, behavior changes, and other documentation

Refer to the labview\readme directory for readme files about LabVIEW add-ons, such as modules and toolkits.

System Requirements

Installation Instructions

Product Security and Critical Updates

LabVIEW 2021 (64-bit)

Accessing the Help

Finding Examples

Automating the Installation of NI Products

Using NI Software with Microsoft Windows 10

Unsupported Windows Operating Systems

Legal Information

System Requirements

LabVIEW 2021 has the following requirements:

Windows Run-Time Engine Development Environment
Processor1 Pentium 4M/Celeron 866 MHz (or equivalent) or later (32-bit)
Pentium 4 G1 (or equivalent) or later (64-bit)
Pentium 4M (or equivalent) or later (32-bit)
Pentium 4 G1 (or equivalent) or later (64-bit)
RAM 256 MB 1 GB
Screen Resolution 1024 x 768 pixels 1024 x 768 pixels
Operating System Windows 10
Windows Server 2019
Windows Server 2016
Windows 10
Windows Server 2019
Windows Server 2016
Disk Space 620 MB 5 GB (includes default drivers)
Color Palette N/A LabVIEW and the LabVIEW Help contain 16-bit color graphics. LabVIEW requires a minimum color palette setting of 16-bit color.
Temporary Files Directory N/A LabVIEW uses a directory for storing temporary files. NI recommends that you have several megabytes of disk space available for this temporary directory.
Adobe Reader N/A You must have Adobe Reader 7.0 or later installed to search PDF versions of all LabVIEW manuals.

Note  Refer to Unsupported Windows Operating Systems for more information about support for Microsoft Windows OSes.

Note  You cannot access LabVIEW using a Guest account on Windows.

Installation Instructions

Download the LabVIEW installer from NI software includes NI Package Manager to handle the installation. Refer to the NI Package Manager Manual for more information about installing, removing, and upgrading NI software using NI Package Manager.


  • If Windows Update is enabled, the installation process might hang if Windows Update interferes with the installation of Microsoft Visual C++ 2015 Run-Time. Visit for more information and steps to resolve this issue.
  • If you purchased this product with an NI Software Suite or NI Product Bundle, use the installation media that shipped with your purchase to install this product.
  • Use the serial number that is included with your software to activate LabVIEW. For more information on LabVIEW activation, refer to NI Software Activation.

If you install software using the LabVIEW Platform media, insert the LabVIEW Platform media and follow the onscreen instructions to install LabVIEW, modules, toolkits, and drivers. When prompted, log in to your NI User Account to activate your NI products. If you are managing your license with a volume license server, you should receive your volume license file by email.

Are you upgrading from a previous version of LabVIEW?

Refer to the LabVIEW Upgrade Notes for information about protecting existing VIs and projects before installing a new version of LabVIEW, as well as upgrade and compatibility issues and a complete list of new features in LabVIEW 2021.

Product Security and Critical Updates

Visit to view and subscribe to receive security notifications about NI products. Visit for information about critical updates from NI.

LabVIEW 2021 (64-bit)

Use the LabVIEW Platform media to install modules and toolkits supported by LabVIEW 2021 (32-bit) and LabVIEW 2021 (64-bit). When run on Windows (64-bit), LabVIEW (64-bit) provides access to more memory than a 32-bit operating system or a 32-bit application can provide. LabVIEW (64-bit) is available in English only.

Supported Hardware

Refer to the NI website for information about drivers compatible with LabVIEW 2021 (64-bit). For GPIB devices, you must use at least NI-488.2 2.6 for Windows. Refer to the specific hardware documentation for more information about compatibility with LabVIEW (64-bit).

Supported Modules and Toolkits

LabVIEW 2021 (64-bit) supports a limited number of modules and toolkits. The following table compares the modules and toolkits supported by LabVIEW (32-bit) and LabVIEW (64-bit).

Product LabVIEW 2021 (32-bit) LabVIEW 2021 (64-bit)
Advanced Signal Processing Toolkit
Control Design and Simulation Module
Database Connectivity Toolkit
Datalogging and Supervisory Control Module
Desktop Execution Trace Toolkit for Windows
Digital Filter Design Toolkit
FPGA Module
MathScript Module
Real-Time Module
Report Generation Toolkit for Microsoft Office
Sound and Vibration Toolkit
Unit Test Framework Toolkit
VI Analyzer Toolkit
Vision Development Module
1 The Control Design and Simulation Module (64-bit) does not support the System Identification Assistant, Control Design Assistant, and real-time targets.

2 The MathScript Module (64-bit) does not support the libraries class of MathScript Module functions.

Refer to the readme of each product for more information about 32-bit and 64-bit support, system requirements, installation instructions, and activation. For information about products not listed in the previous table, refer to the user documentation of those products.

Accessing the Help

Refer to the LabVIEW Help, accessible by selecting Help»LabVIEW Help from LabVIEW, for information about LabVIEW 2021.

Finding Examples

Select Help»Find Examples from LabVIEW to launch the NI Example Finder. You can modify an example VI to fit an application, or you can copy and paste from one or more examples into a VI that you create.

Automating the Installation of NI Products

You can automate the installation of most NI products using command-line arguments to suppress some or all of the installer user interface and dialog boxes.

If the NI product you are installing uses Microsoft .NET 4.6.2, the .NET installer may run before any NI software installs and may require a reboot before the installation of NI software begins. To avoid a .NET reboot, install .NET 4.6.2 separately before you install NI software.

For more information about automating the installation of NI products, refer to Automating an Installer in the NI Package Manager manual.

Using NI Software with Microsoft Windows 10

Microsoft Windows 10 is the latest version of the Windows operating system and features significant changes compared to previous versions. Windows 10 introduces several new capabilities and also combines features from both Windows 7 and Windows 8. For more information about NI support for Windows 10, visit

Unsupported Windows Operating Systems

LabVIEW no longer supports Windows Vista/XP/7/8.x, Windows Server 2003/2008/2012, or any 32-bit Windows operating system. Versions of this product that ship after May 1, 2021, may not install or execute correctly on these operating systems. For detailed information about NI operating system support, visit

Legal Information


© 2004–2021 National Instruments Corporation. All rights reserved.

Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or mechanical, including photocopying, recording, storing in an information retrieval system, or translating, in whole or in part, without the prior written consent of National Instruments Corporation.

NI respects the intellectual property of others, and we ask our users to do the same. NI software is protected by copyright and other intellectual property laws. Where NI software may be used to reproduce software or other materials belonging to others, you may use NI software only to reproduce materials that you may reproduce in accordance with the terms of any applicable license or other legal restriction.

End-User License Agreements and Third-Party Legal Notices

You can find end-user license agreements (EULAs) and third-party legal notices in the following locations after installation:

  • Notices are located in the <National Instruments>\_Legal Information and <National Instruments> directories.
  • EULAs are located in the <National Instruments>\Shared\MDF\Legal\license directory.
  • Review <National Instruments>\_Legal Information.txt for information on including legal information in installers built with NI products.

U.S. Government Restricted Rights

If you are an agency, department, or other entity of the United States Government ("Government"), the use, duplication, reproduction, release, modification, disclosure or transfer of the technical data included in this manual is governed by the Restricted Rights provisions under Federal Acquisition Regulation 52.227-14 for civilian agencies and Defense Federal Acquisition Regulation Supplement Section 252.227-7014 and 252.227-7015 for military agencies.

IVI Foundation Copyright Notice

Content from the IVI specifications reproduced with permission from the IVI Foundation.

The IVI Foundation and its member companies make no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The IVI Foundation and its member companies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.


Refer to the NI Trademarks and Logo Guidelines at for information on NI trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies.


For patents covering the NI products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the NI Patent Notice at