Disadvantages of anti-virus software

When you install various programs on your computer, it becomes more and more slow.
Anti-virus software has a disadvantage in another way.
In order to prevent a virus that tries to penetrate from the outside, we must be at the entrance that shut out.
Our anti-virus software running on your computer for that resident.
I have always overloading the computer.
When connected to the Internet in particular, has a lot of data to download not the part that is displayed on the screen.
Check them all because, I felt slow or the Internet.
Depending on the type of anti-virus software is also relatively fast moving subject.
However, on the principle of operation of the software, a slow processing speed are the same.
Can also be considered a disadvantage to this, please think of unavoidable process.
Acts say not operate the anti-virus software it is very dangerous hate.
I have been trying to break the virus attempts where we do not know.
For example, you will understand and try to connect to the Internet in a state in which to stop the anti-virus software.
There are a lot of software that will convert your PC into a useful tool in the world, it is also trying to use software to make matters worse.
Of course, the software is not bad, it is the person that produces the software is bad.
Maliciously, the author is making a program.
Composition is the same crime in our real life.