Late last week, the Windows 7 Service Pack 1 ISO downloads at Digital River suddenly dried up. In the past hour, I've received official confirmation from Microsoft that the downloads are available once again. Quoting a Microsoft spokesperson:
Windows 7 and Windows 7 SP1 ISO files should again accessible via Digital River; we apologize for any inconvenience.For those of you who don't have access to MSDN -- the ultimate repository of all Microsoft software -- the Digital River links are a godsend. If you need to download a genuine copy of Windows 7 SP1, these should be your first choice. Relying on torrents or other download sites is fraught with potential peril. These are the real McCoy.
If a customer has lost their media, we encourage them to reach out to Microsoft CSS for assistance.
Windows 7 SP 1 downloads once again available from Digital River | Microsoft windows - InfoWorld