As we have stated in the past, Microsoft officially rolled out the final release of Windows 7 yesterday to the general public. 

Microsoft says Windows 7 SP1 includes all the previous security, performance and stability updates, as well as some major improvements to features and services to make Windows 7 perform even better. Microsoft advised users to use the regular Windows update process, although manual download will probably be the faster way to go.

Which ever route you choose to update, it is said that one will need anywhere from 750M to 7.4G for the update. Furthermore, make sure you remove any previous version of Windows Service Pak 1 before proceeding.