In general, if your PC can run Windows Vista, it can run Windows 7. But if you’re not running Windows Vista, or are just not sure if your system is ready to run Windows 7, there’s a quick way to do a simple check.
Just download, install, and run the Windows 7 Upgrade Advisor Beta. You’ll get a report telling you if your PC can run Windows 7, and if there are any known compatibility issues. If the issues can be resolved, you’ll get suggestions for next steps. For example, it’ll let you know if you need an updated software driver. You’ll also get advice on how to upgrade to Windows 7.
Download: Windows 7 Upgrade Advisor