When you open an application and leave it to open another, that app from which you have exited, remains working in the 'Background' function. This is to continue receiving important data that you may be waiting for. This function is very important in social media or instant messaging applications.

Now, the bad thing about the applications that work in the background is that, if the phone that you have turns out to be of few resources, what will happen is that its performance will be affected. This short analysis will show what is negative about the applications that work in the background, how to close these applications and other things that are related to the subject.

What steps should you follow to remove all active background applications?
If you want to remove all the applications from your mobile that are running in the background, you need to carry out a certain process. Pay close attention to the following instructions that we will give you so that you learn to close all the applications that are in the background:

Turn on the screen of your mobile.
Go to the menu of your cell phone.
Enter the mobile settings.
Press the square-shaped button at the bottom of the cell phone or if not, the two tabs together. By doing that, you will see all the applications that are working in the background.
To finish, just press where it says 'Close all' and immediately all will be finalized.
It should be noted that, you can use an application called 'KillApps' to close all your applications that are working in the background. This app is very useful because it tells you exactly the number of applications that are working in the background and gives you the ability to block all of them.

How can you prevent your mobile from running applications again without your permission?
There are some applications that you open, you forget to close them and they remain working in the background , but there are some that start on their own and without your authorization. This type of thing can be solved in a very simple way.

Use an external Killing
Turn on the screen of your mobile.
Go to the home menu of the cell phone.
Enter the cell phone settings.
Go to the 'Applications' section.
Inside 'Applications' enter the 'Battery optimization' section.
Then go to 'See all applications'.
Being inside that section, you are going to select the application you want.
Within the properties of that application you are going to press the option that says 'Do not allow' to block its automatic execution.

This is all you need to block an application that runs in the background on your mobile with Android operating system. If you have a problem blocking an application, what you will have to do is go to the Android technical support website .

There, in the Android technical support, you will be able to find information about how to solve any type of problem including the application blocking in the background.

Hope it helped you.