Hi, I think you should try system restore to revert your computer before your accidental installation. Your computer has been infected and this is the easiest safest way I know of bringing it back to a time when it worked.
System restore can remove all software installed after the restore date. It does not affect your saved files. System restore also reverts changes to your registry. You should remember the time when you installed that incredibar, and simply go back a week before (just to be safe).
"System restore: A step by step guide"