Yet currently every time i do this it's keeps making beeping sound in my window 10 yet playing Maplestory and yet this function disables me to jump left and upwards and can't do this causes me to fail my game or die due to it's making beeping sound 🙁
It's probably because you're using an old keyboard. Old keyboards can only have 2 keys press or held at the same time.
For my old keyboard, whenever I tried to press or hold more than 2 keys at the same time, I would get a beep. In GTA V for example, I was trying to do a donut but couldn't because it required you to use 3 keys.
I switched to a newer keyboard (mine's the Corsair Strafe RGB) this year and was able to have many keys pressed and hold at the same time without any beeps and the functions would work. Reason for switching was because my keyboard was old and wanted a keyboard for gaming.
P.S. What server do you play on MS? I recently came back to MS and play on Broa.