In which case you should post the command you used so that others searching this topic can find it.
sudo mdutil -E /
However, messing about with sudo and Terminal should be your last option unless you're familiar with the Terminal.
I'm not. I know not so much about comands in terminal, I just had no more choice. Tried everything. here is comandsudo mdutil -E /Volumes/Macintosh\ HD/
Click the '+' button at the button, add the 'All my files' folder to it.
There is no such folder. It's a built-in smart folder; i.e., a saved Spotlight search.
Good point! Thx.
Retrieving data ...