Windows 7: Windows 7 SP1 (Service Pack 1) at the End of 2010.

For Microsoft operating systems, Service Pack 1 is the natural evolution of the products from the RTM (release to manufacturing) milestone. Windows 7 is no exception to this rule, despite the company’s foray into standalone updates via Windows Update as an alternative to massive, cumulative service packs. And the wait is on for the first major upgrade to Microsoft’s latest Windows client and server platforms, with the software giant having offered no details on Windows 7 SP1 and Windows Server 2008 SP1. The Redmond company is reportedly planning to release the first service pack for Windows 7 at the end of 2010, namely in the last quarter of this year.