It works! Thanks you Marc, you rock!
I am receiving some weird behaviour after pressing the key (like double click on 'my computer' opens Settings, same as you hold the 'alt' key and double-click, so the alt key remains pressed all the time), might as well be from messing with the 'PC Manager' from Huawei, since the f10 key is locked from bios to open the shortcut of the program, and i was simply replacing the the .exe file.
Maybe is a way to clear the alt-pressed all the time behaviour.