Most people assume that using more than one antivirus program will make their computer more secure and safe.
Technically speaking, you can have more than one antivirus installed and running on your computer. However, the real question is: Is it a good idea to use more than one antivirus simultaneously, and does this have any obvious advantages or disadvantages?
Operating systems like Windows 7 generate more false positives when more than one antivirus is deployed on them. This is because an antivirus makes certain changes in its kernel, the core area of the operating system. If you install more than two antivirus programs it could generate conflicting results and could cause one or both antivirus programs to function improperly.
An antivirus program always slows your computer to an extent, and using more than one antivirus program at a time would consume your computer’s resources, even more, making the computer slower.
Using more than one antivirus is possible, but it is not recommended; it would not enhance the security of your computer and in this case, the cons outweigh the pros.