Can PC Tools AntiVirus Free slowdown the system a lot?

It could but you also can schedule it to run while you are sleeping or away then it wont cause any conflicts while you are on the computer, Just go to schedule and you will figure it from there; Most any antivirus will use up some of the system as they scan,,,

SG

Can PC Tools AntiVirus Free slowdown the system a lot?

YEAH IT CAN I FOUND AVIRA TO RUN NICELY AND NOT USE UP ALOT ...PC TOOLS I FIND TO BE A HOG ....PLUS AVIRA CATCHES ALOT OF CRAP AND UPDATES EVERYDAY ... GIVE IT A TRY...FREE..

http://www.free-av.com/

Can PC Tools AntiVirus Free slowdown the system a lot?antivirus downloads

Any anti virus software can slow a computer if it is left to run, uncontrolled, in the background.