Windows 7 Service Pack 1 (Windows 7 SP1) is now officially out! The Windows 7 Service Pack 1 is available for free but of course, only to those who legitimately own Windows 7.
The Windows 7 Service Pack 1 does not seem to include major new features but performance and bug fixes are definitely in.
Windows 7 Service Pack 1 (SP1) is an important update that includes previously released security, performance, and stability updates for Windows 7. SP1 also includes new improvements to features and services in Windows 7, such as improved reliability when connecting to HDMI audio devices, printing using the XPS Viewer, and restoring previous folders in Windows Explorer after restarting.
You can either download Windows 7 Service Pack 1 through your Windows update (in Control Panel)
or download + install it manually: