boss you came here asking us so we told you.
not only do I not trust your za (BTW is it freeware) but also if a system is suspected of being infected the last thing you do is trust the apps including security on that PC
now how about you take 20 minutes and do the scans I recommended so you can help yourself
you always have to make sure, if you take it step by step and do it right then you can go forward much faster
step one, make sure the PC is clean don't guess it is