Yes, Gmail works on Windows 7. The popular email service from Google is compatible with Windows 7, as well as other versions of Windows including 8 and 10. To use it you'll need to download the appropriate app or program for your device and then sign in using your Gmail account. Once done, you'll have access to all the features that come with a standard Gmail account like labels, filters, archiving mail and more. You can also use third-party programs like Microsoft Outlook or Mozilla Thunderbird to access your emails if needed - simply connect them up via IMAP or POP3 protocols to get started. All these tools make managing your emails a breeze no matter what version of Windows you're running!