I have a Acer Travelmate C100 tablet notebook. The problem is that yesterday during installation of OS, I went into the BIOS setup, and messed around with the settings, now what has happened is that, the Harddrive has a password set on it, asking me to enter the password upon bootup for the hard disk. The thing is I did not set a password, when I had gone into BIOS, it showed as the hard drive already had a password on it. Before yesterday it did not prompt me to enter the password. I called up acer and they told me it would cost me £50 to repair this. Is there any way I can resolve this without paying the £50. I think if I were to flash the BIOS then it would work, by removing the CMOS battery, but I am not too sure about that. Also I do not know where the CMOS battery is located.