download windows 7 ultimate sp1 64 bit iso

We recommend you move to a Windows 11 to continue to receive security updates from Microsoft.

Note: Support for Windows 7 ended on January 14, 2020. Released to the public in early 2011, some year and a half after the arrival of the original version of Windows 7, SP1 managed to update this OS with features that enabled it to become relevant, more stable, and usable for years to come. If you need to run 32-bit Firefox or manually install 64-bit Firefox, you can simply download and re-run the Windows (32-bit or 64-bit) Firefox installer from the Firefox platforms and languages download page.Windows 7 Service Pack 1 is an official update for Windows 7 that greatly increases its functionality and stability, offering users of this PC operating system from Microsoft a wide variety of improvements that touch every aspect of using the modern PC platform. You can still manually install 64-bit Firefox, if you choose. If you see “(32-bit)” and are running Firefox 56.0.1 or newer, then your computer may not meet the minimum memory requirement for 64-bit (3 GB RAM or more).If you see “(32-bit)” and you are running Firefox 56.0 or older, updating to the latest Firefox version should automatically upgrade you to 64-bit.Check your Firefox version (in the “About Firefox” window) and look for “(32-bit)” or “(64-bit)” after the version number: If you’re running 64-bit Windows ( here’s how to check), your Firefox may already be 64-bit. Linux and macOS users, fret not, you already enjoy a Firefox that’s optimized for 64-bit. Also, with the jump from 32 to 64 bits, a security feature called Address Space Layout Randomization (ASLR) works better to protect you from attackers. Here’s the key thing to know: 64-bit applications can access more memory and are less likely to crash than 32-bit applications. What’s the difference between 32-bit and 64-bit? How much less? In our tests so far, 64-bit Firefox reduced crashes by 39% on machines with 4GB of RAM or more. That means you get a more secure version of Firefox, one that also crashes a whole lot less.

Users on 64-bit Windows who download Firefox can get our 64-bit version by default.

Download windows 7 ultimate sp1 64 bit iso