Microsoft Online Electronic Software Download (ESD) Support
Many Microsoft products and product upgrades can be purchased online and downloaded to your computer as an Electronic Software Download. In addition to buying your Microsoft product directly from Microsoft, you may have purchased it from another company.
For online store order, download, or product key questions, please continue with the steps below.
Once your product has been successfully downloaded to your machine and you need technical support help, please contact Microsoft at http://support.microsoft.com/contactus.
Do you know what site you purchased your product from?