Stuck using a lower-end version of Windows 7 and considering an upgrade? Then you might want to act fast -- Microsoft has just issued a reminder that its Windows Anytime Upgrade offer is ending this Saturday, July 3rd. That lets anyone using Windows 7 Starter edition upgrade to Home Premium for just $49.99 (normally $79.99), or from Home Premium to Windows 7 Professional for $79.99 (normally $89.99). Ready to make the jump? Hit up the link below for all the details.