Antaine OLabhradha

I RECENTLY INSTALLED AVIRA FREE ANTIVIRUS ON MY WINDOWS 8.1 UPDATE 1 LAPTOP. I MUST HAVE (BUT DO NOT REMEMBER HAVING) SET A PASSWORD TO PREVENT UNAUTHORISED ACCESS TO THE PROGRAMME. MY PROBLEM IS THAT I WANT TO UNINSTALL THE PROGRAMME, BUT AM PREVENTED FROM DOING SO BY THE NEED TO ENTER THE PASSWORD. I HAVE TRIED EVERY PASSWORD I USE TO NO AVAIL. I USED "WISE PROGRAM UNINSTALLER" TO REMOVE AVIRA, BUT WHILE IT WAS REMOVED FROM THE PROGRAMME LIST IN WINDOWS, THE PROGRAMME WAS STILL RUNNING ON THE LAPTOP. I TRIED REVO UNINSTALLER, BUT THE FREE VERSION DOES NOT OFFER FORCED UNINSTALL. CAN ANYONE ADVISE ME OF A THIRD PARTY FREE PROGRAMME THAT WILL COMPLETELY REMOVE AVIRA FROM MY LAPTOP? YOUR ADVICE IS APPRECIATED.