Can't get rid of icons with green locks on them I would like to know how to get rid of these icons with the lock, every other app just goes but not these three. I used the small broom icon but these remained there and it didn't happen before. I'm using Android 4.2.2 in a Lenovo vibe x s960 smartphone.



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This is the task bar showing applications currently in main memory. The broom cleans up main memory except "locked" apps. To clean them up, you can flick them up one by one.

Yet, with Android it is not necessary to do this in the vast majority of cases. Android OS does a pretty good job of managing memory and swapping apps to storage.