Can anyone help me? I have bought a new desktop at a auction and it is password protected.

what is the BEST and easiest way to skip or overwrite the current password.

helppppppp When someone asks for advice on circumventing a password we have no way of KNOWING whether the person is the rightful owner of the computer or not. THEREFORE we generally do not give advice on circumventing passwords.
But I can tell you this.
If it is the Windows password (a password at the Windows login screen) then I suggest you format the hard drive and reinstall Windows. In fact you should ALWAYS do this when buying a used computer. There is no way of knowing what the previous owner might have installed on the computer.
If it is the BIOS password (a password you need to enter just after you power on the computer) then you will need to take the laptop to a technician that can service the laptop brand in question. BIOS passwords on laptops cannot EASILY be removed.
Alternately you could try contacting the seller and get the password from him/her.