|"then it shuts down. I press the power button again, then It make a long 'beeeeeeeep"...will that disconnect my internet? will that harm my pc? and in the middle of the loud booting thing..."|
... so that loud beeeeeeeep is'nt just a "one off" then?
... the bios booting alteration "thing" is all that it alters "boot to Lan" usually for remote access used for network installation of the os.
... at this stage I have no idea about your "beeeep" but it tells me there is something wrong! Here are some tests you could try!
"...so I click the power button..." which more than likely "bios shocked" the settings.
... alter the bios dates if scrambled.
... Posting is provided "AS IS" with no warranties