Certain information used by the BIOS, such as the current time, is stored in CMOS. It is software that instructs the computer on how to do a variety of basic functions, including how to load the operating system and the power-on self-test (POST). More about BIOS:bios is an abbreviation for the Basic Input Output System.Īnatomia De Gardner Pdf Viewer. Many BIOS's have well-known backdoor passwords and some can be reset by simply removing the CMOS battery this does not apply to dell laptop. However, these are very easy to circumvent. A common technique to circumvent this protection is to boot to an alternate BIOS PasswordA BIOS password is a password that must be entered before the system will boot the operating system. Operating System Password:The operating system will only provide protection to data if the operating system is running. These are using an operating system password, a BIOS password, or a hard disk password. Understanding Laptop Protection Methods:There are three common password protection mechanisms that should not be mistaken for encryption and in reality, provide only limited protection.

Also, some models require you to press Ctrl+Enter after entering the password.