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.