Prior to purchasing and installing Bitdefender Anti-Virus Pro 2015 I had been using McAfee (which came with my Windows PC) and up until recently AVG. Along with these programs I had installed the free versions of SpyBot Search and Destroy and Ad-Aware. Occasionally I would run the latter two programs just to catch anything that may have slipped thru the cracks. All the programs worked well together without conflicts.
Since it was necessary to delete all traces of each of the above programs before Bitdefender would install, I am wondering if there is any usefulness in re-installing the free versions of SpyBot and Ad-Aware. Or is Bitdefender considered robust and thorough enough to where adding these two additional "protections" is not really necessary. I know it is not wise to have multiple anti-virus programs running at the same time, but since these are the free versions, with less features, then possibly they may not cause a conflict.
Just wanted to get others thoughts on this issue. Thanks.