Help me please my computer is weird

Well when i was using my computer me and my brother have been off and on with the passwords hese been changin em and ve been goin on safe mode and getting back on it np there but now hes put a password on the computer itself and im lik wdf??? cuz now as soon as i turn it on it gives me that. and if u thik thats weird get this... I DID IT FIrst and somehow he bypassed and mae his password and no there is no way he could have known plz help

 

ouch, decrypting the post gives a headache already

So i presume he put a password in the BIOS, you have 2 things you can do to remove that :
1- try entering the BIOS (via F2 on startup or ESC or F10 , or DEL) the look in the menus for "Password" related items.
2- if 1 doesn't work (he protected the bios as well), all you can do is : open the computer case, look for the battery (a 50 american cents sized silvery battery) and remove it for like 10 minutes, put back, and reboot.

Please notice that step 2 is very dangerous, and needs some hardware knowledge , notice that the box should not be connected to the electric outlet when you start fiddling it, should you need an adult supervision please do so.

 

do that then get a BIOS password or if he does it again just change you lan/wlan password which i hope you have

 

tyvm guys