Not only you installed proprietary malware but you also enlarged your attack
surface.
* every proprietary software is malware. Prove me wrong. PROTIP: you can't
** In order to work an antivirus needs full access to your machine, it needs
root privileges and it is constantly and actively running in the background
giving an attacker a huge opportunity to attack your system via antivirus
itself :)
I suggest you now enter full masochistic mode and follow the following:
1 - Gutmann style shred every bit on your hard drive with 35 passes
2 - Fill the hardrive with smurf episodes until full to the last bit
3 - Install Gentoo
4 - Pray and Praise teh Gahnuu
5 - Repeat points 1 and 2
6 - Install Trisquel
(welcome to the forum!)
