ais installation "not responding"

I’m running windows 7 home basic and it is impossible to succeed in ais installation. It freezes in “preparing to install”. Task manager says, “not responding”. I already uninstalled previous Norton with Norton remover tool provided by Symantec. Besides, I have already paid for it since April! License time is running and I can’t install ais…

I’ve never used Norton, but did the uninstall tool require you to run it in safe mode?

Thank you for answering, I tried in safe mode and the problem remains. Any other idea? Somebody?