I have Dreamweaver on my desktop with Windows XP. My laptop had Vista. Dreamweaver was unusable on the Vista platform, which really slowed down my computer. Fortunately, the Toshiba laptop I bought came with a free Windows 7 upgrade. When I upgraded to Windows 7 life changed. I have only been using it for a few months, but Dreamweaver has been working very well with Windows 7. I haven't found any adverse issues.