I first purchased Windows 7 Home Edition (32-bit), then upgraded online to Windows 7 Pro (32-bit). The hal.dll corrupted and I couldn't fix the problem because I only had the Home Edition discs.
Several sources in Forums advised me to fix the problem using a boot disk from an ISO downloaded from Digital River. That disc couldn't fix the hal.dll problem either so I did the Custom Install.
That put a new installation of Windows 7 Pro on the computer. Now I'm being asked for the Activation Key. The Key I was given when I upgraded to Pro isn't being accepted. I'm told that the Key I was given only works for the Windows 7 Pro upgrade..!
I've signed-on to the Microsoft site and followed links around for a while, but I can't find any understandable information about my problem.
How do I get the Activation Key for Windows 7 Pro now that it's been reinstalled?