Hi melig6pd,
It is worth trying a couple of free apps. and see what they come up with.
I would d/l , install. update and scan with these two freebies :
Malwarebytes.org
Use the malwarebytes Trial version - it is free forever if you update and scan manually.
SuperAntiSpyware - again get the free version and update and scan manually:
SUPERAntiSpyware.com - AntiAdware. AntiSpyware. AntiMalware.
Hope it helps