If you have access to a development edition of the OS, then I would expect that you have a MSDN account, and it would then follow that about the only reason to fork over that kind of cash is if you are actually a developer. If I continue on down this line of thought, it would indicate that while computer programmers have often been some of the single most clueless users I have ever met, this sort of problem would be right up their alley. Which then leads to the obvious question of why it seems to be vexing you so much to ask about it here.
I think I registered my computer running the release of windows 8 development preview, but when I select scan in my tech tracker, the scan keeps failing. Why?