Windows 7 Requirements for Upgrade

In order to run Windows 7, your PC must have the following:

• 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor


• 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)


• 16 GB available hard disk space (32-bit) or 20 GB (64-bit)


• DirectX 9 graphics device with WDDM 1.0 or higher driver

Additional System Requirements may be needed to run certain features.

Windows 7 Upgrade Advisor

Microsoft is providing a tool called the Windows 7 Upgrade Advisor so customers can determine if their PC is able to run Windows 7. It is a good idea to Download the Windows 7 Upgrade Advisor before upgrading. It will analyze your computer's processor, memory, storage, graphics capabilities and any other compatibility issues. If possible, it will also provide guidance for resolving issues.

Please note, you should plug in and connect all USB devices, printers, external hard drives, etc. when running the Upgrade Advisor. This will provide the best analysis of your system..

Windows Experience Index

The Windows Experience Index is another indicator of how well your computer will respond to Windows 7. The Windows Experience Index tests your system and rates it with a score between 1 and 7.9. The higher the score the better your computer's performance. Some Windows 7 features, like Aero, need a score of at least 3 to run.

1. To check your Windows Experience Index, click on the Start Menu and select Computer. The Computer window will appear.


2. Select System Properties in the button bar at the top of the screen. The System Window displays your computer's Windows Experience Index rating.
   
   
   You can also see your system properties and determine if you are running on a 32-bit or 64-bit processor.
   Check the Windows Experience Index


3. Select the Windows Experience Index link to view the ratings of the individual computer components that are scored. The rating is determined by the lowest subscore.
   Explanation of Score

In this case, the score of 4.3 should be sufficient to experience most of the new windows features. If your system scores lower than a 3, you may miss out on some of the digital media and graphics features, including Window's Aero.