Microsoft Project 2021 Professional Download: How to Download, Install & Activate

This guide shows you how to download Microsoft Project 2021 Professional, install it on Windows, and activate using a genuine licence key. Project 2021 Professional is Microsoft's powerful project management software for planning, scheduling, and resource management.

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System Requirements for Microsoft Project 2021 Professional

• OS: Windows 10 (version 1809+) or Windows 11
• Processor: 1.6 GHz or faster, 2-core
• RAM: 4 GB (64-bit)
• Storage: 4 GB available disk space
• Display: 1280 x 768 resolution
• Internet: Required for installation and activation

Note: Microsoft Project 2021 is not available for Mac. For Mac project management, consider Project Online.

How to Download and Install Microsoft Project 2021 Professional

Method 1 – Via Microsoft Account (Recommended)

1. Sign in at account.microsoft.com.
2. Go to Services & Subscriptions and find your Project 2021 purchase.
3. Click Install to download the Office/Project installer.
4. Run OfficeSetup.exe and follow the prompts.
5. Project 2021 will install silently in the background (10–20 min).

Method 2 – Office Deployment Tool (IT Admins)

1. Download the Office Deployment Tool.
2. Create a configuration XML targeting ProjectPro2021Retail.
3. Run: setup.exe /download config.xml then setup.exe /configure config.xml

How to Activate Microsoft Project 2021 Professional

Online Activation

1. Open Microsoft Project 2021.
2. Go to File → Account → Activate Product.
3. Enter your 25-character product key.
4. Click Continue to activate online.

Command Line Activation

cd "C:\Program Files\Microsoft Office\root\Office16"
cscript ospp.vbs /inpkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
cscript ospp.vbs /act

What's New in Project 2021 Professional?

• Co-authoring — multiple users can work on the same project simultaneously
• New task linking and sprint planning features
• Improved resource management and team collaboration
• Integration with Microsoft Teams for project communication
• Dark mode support

Frequently Asked Questions

Can I use Microsoft Project 2021 without an internet connection?

Yes, after activation. Initial installation and activation require internet access, but Project 2021 works offline for day-to-day project management.

What's the difference between Project 2021 Standard and Professional?

Professional includes all Standard features plus resource management, team collaboration, and SharePoint/Project Server integration. Project 2021 Standard is for solo users managing simpler projects.

Where can I buy a genuine Project 2021 Professional key?

Buy Microsoft Project 2021 Professional from LicenceHouse — genuine key, instant delivery, best price guaranteed.

Related Guides: Visio 2021 Professional Guide | Office 2021 Pro Plus Guide