I have a acer aspire 4530 . i forget my bios pass word & vista log in password. already try to rid bios battery and CLRTC jumpper, i am didn't able to locate that. also try to F8 for safe mood, it's also ask password. so give me the way to get cmos battery or any better way to select boot menu CD-ROM. thanks..... a lot.
You'll probably end up taking the thing apart to get to the CMOS battery. There is a guide at the top of the forum here to take apart a laptop. The easiest method would probably be to just send it in to acer and have them wipe out the passwords.