Article ID: 933175 - View products that this article applies to.
This article is intended for a beginning to intermediate computer user.You may find it easier to follow the steps if you print this article first. This article describes a problem in which you receive a "Your activation period has expired" error message when you start Windows Vista. A resolution for this problem is included.
When you start Windows Vista, you receive the following error message:
Additionally, the taskbar does not appear. You have limited access to Windows Vista programs and to Windows Vista features.
Activate Windows Now
Your activation period has expired and Windows is no longer working.
To use Windows you must activate this copy of Windows.
To resolve this problem, enter a valid product key. To do this, follow these steps:
To receive support for Windows Vista, you must provide the product ID (PID) for the version of Windows Vista that you have installed on your computer. To view the PID by using Windows Internet Explorer 7 in reduced-functionality mode, follow these steps:
(https://support.microsoft.com/kb/925582/ )The behavior of reduced functionality mode in Windows Vista
For more information about Windows Vista activation, visit the following Microsoft Web sites.
To troubleshoot activation problems
Frequently asked questions
http://windowshelp.microsoft.com/Windows/en-US/Help/62088be6-3538-46a6-99fb-05e74aeb48b51033.mspxFor more information, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/925616/ )Error message when you start Windows Vista: "Your activation period has expired"
Article ID: 933175 - Last Review: October 26, 2007 - Revision: 1.4