Support for Microsoft Product Activation problems

Product Activation Solution Center

Key resources

Key resources

What is Microsoft Product Activation (MPA)?
Learn how product activation works.

How to tell if your product is properly licensed
Make sure that you have the right licensing for your Microsoft products.

Learn how to identify, locate, or replace a Product Key
Help with finding or replacing your Product Key required for Product Activation.

Locate your Product Key sticker and learn its importance.
See examples of Certificate of Authority (COA) labels.

Activating Microsoft games and mapping programs
Frequently asked questions about Games for Windows, MapPoint, and Streets and Trips activation.

What is the difference between Product Activation and Product Registration?
You must activate your Microsoft product but you are not required to register your product, learn more about the differences.

Report Software Piracy
Reporting suspected violations of privacy when you encounter them can have a positive impact on the fight against piracy.


Microsoft Windows product activation

Activating Windows 7
How to activate Windows 7. Play video to learn more.

Windows 7 activation FAQ
Frequently asked questions about activating Windows 7.

Activating Windows Vista
How to activate Windows Vista.

Activating Windows XP
How to activate Windows XP.

How to change or update your Product key
Steps to change your product key in Windows 7, Windows Vista and Windows XP.

"Your activation period has expired" error message in Windows Vista
Provides steps to resolve Windows Activation or Windows Genuine Advantage issues when your computer is in reduced functionality mode.

Reduced functionality mode in Windows Vista
Describes the behaviors you can expect when Windows Vista is in reduced functionality mode.

Visit the Microsoft Community community
Find answers to install, upgrade, and activate Windows 7.


Microsoft Office product activation

Office 2010 Product Key Guided Help
Use our guided help workflow to solve common problems with product activation and product keys. Common problems include identifying and entering your product key; errors when entering your product key and eligibility to get a replacement key.

Description of the Office Activation Wizard
Office includes an Activation Wizard. To fully use Office, you must activate Office.

Activate your Microsoft Office 2010 programs
How to activate Microsoft Office 2010 programs and verify that your software has been activated.

How to obtain a new product key for a Microsoft Office product
How to find the product key if you cannot locate it, or how to obtain a new product key if the product key label is damaged or is missing.

Which button do I click to activate, purchase, download, or use an Office 2010 product?
This article helps you start using a Microsoft Office 2010 product if you have already bought Office 2010 and need to activate the product, want to buy Office 2010 or want to use Office Starter 2010.

Activate your Microsoft Office 2007 programs
How to activate Microsoft Office 2007 programs and verify that your software has been activated.

Resources to help you activate a license in Microsoft Office 2007 and Office 2003 programs
Troubleshooting help and additional information about activation.

Visit the Microsoft Community community
Find answers on installing, upgrading, and activating Microsoft Office.

Volume license activation

Volume license activation

Volume Activation Information for Windows Vista, Windows Server 2008, Windows Server 2008 R2 and Windows 7
View resources about Volume Licensing and Volume Activation 2.0.

Volume License Product Keys
How to get Volume License Keys including KMS and MAK.

Volume License Key frequently asked questions
Answers to frequently asked questions about Volume License Keys.


Call us

(Pacific Time)
5 a.m. - 7 p.m.
For Genuine Advantage issues please select the appropriate phone number:

Windows 7: 1-866-530-6364
Windows Vista: 1-866-530-6599
Windows XP: 1-866-530-6599
Microsoft Office: 1-866-530-6599
All other products: 1-866-530-6599

E-mail us

Not AvailableE-Mail
Microsoft does not offer Genuine Advantage assistance via E-Mail. Please use one of the other contact methods listed on this page.

Ask the community

Always Open
Response within 72 hours

Windows 7: Genuine Advantage Validation Issues forum
Windows 7 Software Protection Platform - Non-Genuine, validation problems, or software licensing services messages.

Windows Vista: Validation Issues forum
Windows Vista Software Protection Platform - Non-Genuine, validation problems, or software licensing services messages.

Windows XP: Genuine Advantage Validation Issues forum
Windows XP validation process including browser settings, security settings, or other issues.

Microsoft Office: Genuine Advantage Validation issues forum
Office Genuine Advantage validation of individual applications or product suites - validation, security, and browser problems.

Genuine Advantage Offers - Eligibility Issues Forum
Ask a question or search for answers on issues for users who are genuine, but are having issues qualifying for Genuine Advantage Offers.

Genuine Benefits
Why be Genuine? What’s in it for you? Ask a question or search for answers.

Genuine Advantage; Feedback and Comments
We would like to know how to make the validation and overall Genuine process more streamlined.

Javascript Disabled We detected that Javascript is disabled on your machine. To get the best support experience, enable Active Scripting

Last Review : Wednesday, 25 September 2013