upto last night my desktop was OK. There was all icons as I need. Today in the moring I
can see as in the picture here. I hope I mistakenly pressed wrong key. How to solve this?
Once I right click with mouse cannot access also.
I see that you had accidentally turned on tablet mode in your computer, to turn it off, follow these steps:
Firstly, open the action center by clicking the button on bottom left corner and then turn off tablet mode by clicking the button shown in step two