[Q]

Was it activated before?

If you still can't download the file, there are two things that you can try:

1) Click Start and type "slui.exe 3" (sans quotes) in the search box and click the link that appears in the window. Type your product key in the window that appears and click Next. When it asks if you want to activate, click OK.

2) Click Start and type "slui.exe 4" (sans quotes) in the search box and click the link that appears in the window. Navigate to the nearest activation center, have your product key handy, call the number and tell them what's going on.