Launched in 2007 (after a few delays), it was the first Windows overhaul since the well-loved XP release in 2001.
Which means, if you're somehow stuck with Microsoft's least popular operating system, it's time to move on. That lack of support after April 11—which applies to Internet Explorer 9 as well—doesn't just mean basic inattention.
For example, the Aero graphical user interface will not automatically be enabled unless the system has a WEI score of 3 or higher.
In 2004, Lester expanded further on Microsoft's intentions by stating that the company would work with hardware manufacturers to create PCs for Windows Vista that used a "level system" to designate the performance and capabilities of a system's hardware and that Xbox 360 peripherals would be fully compatible with the operating system.The Windows Experience Index feature in Windows Vista relies on measurements taken with Win SAT to provide an accurate assessment of a system's capabilities—these capabilities are presented in the form of a rating, where a higher rating indicates better performance.The Windows Experience Index should be your first stop on the path to making your computer faster.The Windows Experience Index is a rating system that measures the various parts of your computer that affect performance; they include the processor, RAM, graphics capabilities and hard drive.It's simply a restating of your lowest overall subscore.
It's the minimum performance capability of your computer.
For example, a computer with the lowest subscore being its memory, would benefit more from a RAM upgrade than adding a faster hard drive (or any other component).) The WEI is also available to applications through an API, so they can configure themselves as a function of hardware performance, taking advantage of its capabilities without becoming unacceptably slow.
The Windows Experience Index score is not displayed in Windows 8.1 because the graphical user interface for Win SAT was removed in this version of Windows, although the command line winsat tool still exists and operates correctly.
From here on out there will be no more Vista security patches, no more bug fixes, and no more technical help.
Operating systems that are no longer supported are much more vulnerable to attack, because bad actors who find vulnerabilities in the software know that they will be able to exploit them for years without needing to worry about the bug getting patched.
Understanding the Index can help you sort out what actions to take to speed up your PC.