As mentioned earlier, there is no official Windows 7 Service Pack 3. Users can, however, download and install all the cumulative updates released up to a certain date.

Windows 7, released in 2009, was a highly popular operating system from Microsoft. Despite its popularity, the operating system has reached its end-of-life (EOL), which means it no longer receives security updates or technical support from Microsoft. However, many users still rely on Windows 7 for various reasons. One common query from these users is about downloading Windows 7 Service Pack 3 (SP3) 64-bit offline ISO. This paper aims to provide an overview of Windows 7 Service Pack 3, its features, and the possibility of downloading a 64-bit offline ISO.

If you're looking to create an installation media with the latest updates, you can use the Microsoft's official media creation tool, but ensure you have a legitimate Windows 7 license.