I think that the OP may have interrupted the parts update in initial install (which freezes with no indication it is doing anything for quite a while) and corrupted the parts database. After that nothing except deleting the user directories is likely to do much, including removing and reinstalling the software. I can understand his frustration if that's what happened (and he won't have seen any of the good features yet). I guess we will know if he ever comes back and tells us if something worked 
or has just written Fritzing off.
Peter