Excessive use of data on the MacBook Air

Just made the switch from PC to Mac.  MacBook Air (El Capitan) with tons of data at startup.  I disabled automatic downloads in the app store.  What can I do else?  Using 3-400 MB every morning.

Any client on a network, including wireless clients, you don't know, could be the consumption of bandwidth. Networks Wi - Fi must be protected with WPA2 security. If yours is not, change the setting of security on the access point. If it is already defined in this way, change the password. Make a chain of at least 8 random characters, including uppercase and lowercase letters and numbers. The password is saved in the keychain and you don't have to remember it. in fact, you should not be able to remember.

You make these changes in AirPort Utility, if the access point is an Apple device or in a web browser otherwise.

If the network or the password was precarious, and bandwidth utilization returns to normal after it, you can be sure that the problem was caused by intruders.

But the intrusion may not be the question. Most of BitTorrent, iCloud, Dropbox or another application of data on clouds intervenes when mysterious bandwidth by a Mac using. If you use iCloud, uncheck the box at least iCloud in its pane preferably by car and see if there is no change. If you use a backup software or the third-party network file-synchronization, disable that. If you use a torrent client, remove it.

Otherwise, if you're running OS X 10.9 or later, you can see which processes are most active on the network.

Please launch the activity monitor application in one of the following ways:

☞ Enter the first letters of his name in a Spotlight search. Select from the results (it should be at the top).

☞ In the Finder, select go utilities ▹ of menu bar or press the combination of keys shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

Select all processes in the view menu, if not already selected, and also select the network tab.

Click on the header of the column of bytes transmitted in the process table to sort the entries of the bandwidth. You may have to click twice to get the highest value at the top. What is and what is the process? Repeat with column bytes Rcvd.

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