When Microsoft made Windows 7 SP1 available last month, users the world over set off downloading the update, but what if you want the files on a good old piece of plastic? Now you can order SP1 for free from Microsoft’s Online Store.

As promised, Microsoft today has released Windows 7 SP1 (Service Pack 1) and Windows Server 2008 R2 SP1 (Service Pack 1) to public as a free download.

Microsoft has just released RTM (final) version of Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 for their MSDN and TechNet subscribers. Public version will be available on February 22nd via Microsoft Download Center and Windows Update.

The very final RTM bits of both Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 have managed to slip through and has landed into the wild just like the previous builds 7601.16537, 7601.16543 and 7601.16562. Build number for Windows 7 SP1 RTM is 7601.17514.win7sp1_rtm.101119-1850 which means that it was compiled on 19th November 2010.

As expected, Microsoft today at its Worldwide Partner Conference 2010 has announced the public availability of Windows 7 SP1 Beta, and Windows Server 2008 R2 SP1 Beta for users running the final RTM version of the respective operating systems.

Yet another Build of Windows 7 Service Pack 1 Beta has managed to slip through and has landed into the wild just like the previous builds like Build 7601.16537 and Build 7601.16543. This new Build number is 7601.16562.100603-1800 Service Pack 1, v.178 which means that it was compiled on 3rd June 2010.

Following the recently leaked Build 7601.16537 and Build 7601.16543 of Windows 7 Service Pack 1, a new build has now leaked to the wild. The leaked build is 7601.16556.100421-1510 Service Pack 1, v.172 and was compiled on 21st April 2010. Source of this leak is WZOR, who has managed to slip this one through Microsoft’s fortress yet again.

According to a post on Geeksmack, Windows 7 SP1 Beta has been leaked and will be soon available for download on any of your favorite content hubs. The build which has been leaked carries a build string of 7601.16543.100403-1630 v.159, which means that it was compiled on 3rd April 2010.

A Spanish site named Muywindows has grabbed exclusive screenshots from the upcoming Service Pack for Windows 7. The screenshots seems to have been taken from a demo copy of a Pre SP1 Build of Windows 7 which according to them will be handed over to a selected pool of private testers in the coming weeks.