Legacy mode

Hello. So, the problem is recent. I used Windows 10 and various Linux distributions on the laptop, and they always loaded correctly, without any problems. The problem happens when the UEFI mode is enabled, while the Legacy mode is disabled. If both modes are enabled, there won't be any...

I have an usb drive that doesn't show up in "my computer", the first time i plugged it in it worked, i stopped using it for a while and started working, but as soon as i plugged it out and in again it stopped showing up. When i plug or unplug it it makes the sound, it showes up in "printers and...