|"I'm not sure i will be able to correct all those settings"|
Not sure? Have you tried? You haven't mentioned the make/model of your board, but usually all you have to do is press the DEL key during bootup to enter the BIOS. Did you manage to clear the password? If not, unplug the power cord & remove the battery...wait a minute, then pop it back in. That *should* clear the password & reset the BIOS, then you can enter it using the DEL key & correct all the settings.