Rumors of upcoming Microsoft Windows 7 Service Pack 1 are now officially confirmed as the company posted details of Windows 7 SP1 and Windows Server 2008 R2 SP1, surprisingly Windows 7 SP1 will only include minor updates apart from an updated Remote Desktop client which now takes advantage of RemoteFX technology.

Microsoft however did not provided any release or beta timeline for SP1 and only said :

"Once SP1 for Windows 7 and Windows Server 2008 R2 is released, the service pack will be delivered through Windows Update and be available on Microsoft Download Center for download as well."

Finally the cat is out of the bag with leak of first ever Microsoft Windows 7 Service Pack 1 screenshots, the series of images posted at a non-english blog shows the SP1 installer suggesting that it sizes around 149.4 MB in its current build form.

According to the blogger the total number of updates in the current build of Service Pack 1 is around 150, these updates bring the Windows 7 compilation build number between: 7600.20500 and 20,700.

We have posted about indicative proofs of Microsoft doing internal Windows 7 SP1 testing and now to further support the unconfirmed news bloggers at ZDNet are now reporting that they have received several reports supporting claims of undergoing Windows 7 SP1 testing and have seen lists of post-RTM build numbers for Windows 7.

Microsoft routinely provides a single installable package with collection of updates, fixes and/or enhancements for their software as Service Packs addressing common annoyances and adding new features to their products, After quite successful launch of company's latest operating-system Windows 7 it now seems that Microsoft is all-set to start external beta-testing of Windows 7 Service Pack 1 (SP1), Blogger Rafael has found that as previously done a beta ‘candidacy check’ within Windows Update achieved via simple registry key and value pair needs to be done for getting authorized to download the new Windows 7 SP1 Update.