What happens if you try to open a file for writing, but the file or device is write protected?

Simply remove the write protected.

Firstly open your Start menu-->

click Run-->

type registry editor-->press enter-->

open registry editor-->

Double tap the Write Protect key-->

right side panel-->

and set the value 0.

browsing like internet search? don't look at anything stupid. or set up restrictions on ur device's search engine. and if something suspicious comes up don't be dumb and click on it. i hope that's what ur question meant.