Last Thursday, the technician brought my computer to me. I backed up most of my files, although I still need to organize them properly to know what's useful and what isn't so I can delete them. Unfortunately, the computer still makes the annoying noise it made two weeks ago, as if the internal fan were turning on, even though I'm not using anything and it's just on. I asked the technician, and he said it could be the fan or the internal drive could be damaged. Even so, thank you all for the good vibes you gave me.