avast antivirus runs all the time, as does spyware blaster. Spybot and malwarebytes are used as scanners once a week, or as often as I remember.
I have a friend who is an expert and this is what he advises, except for malware bytes, he says: "don't use it, as with the other three I could not get better cover."
You should use one and only one anti ware.
Otherwise they could conflict, and cancel with one another.
I mean, I knew that by 10th. grade.
Is it ok to have more than one antivirus installed?
Antivirus programs and companies No.
We highly recommend that only one antivirus program be installed on your computer. If you're dissatisfied with the antivirus program you currently have installed we suggest that it be uninstalled, and a new antivirus program installed. Having more than one antivirus on the computer can cause a number of different issues. Often the most common issue being a confliction between the different antivirus programs causing your computer to become unprotected.
Although we only recommend one antivirus program on the computer, it's more than acceptable to have one ore more spyware or malware protection programs on the computer in addition to an antivirus scanner.