In order to protect data safe on laptop, encryption is used
usually, and the most popular encryption technology is CMOS password. And in
the purpose of important data safety, maybe you need to set different password
and you have to remember them. But for laptop users, does it really need to set
password gateway one by one? If not, how to set password opportunely for laptop?
Understand and learn how to set CMOS password on laptop.
The CMOS password of laptop includes Supervisor Password, User
Password, Power-On Password and Hard Disk Password. For different laptop brand
and series, there are probably different password combinations. Take Toshiba
Satellite 3000 laptop as example, enter CMOS setting program, and turn to
Security menu option, only Supervisor password, user password and Power-on
password can be seen. And in ASUS M2N laptop CMOS program, you could only see Supervisor
password, user password and hard disk password setting options.
1. Supervisor password
Supervisor password is the password of administrator in CMOS
setting program.
After you set supervisor password, if computer user want to
access CMOS setting program and change its parameters, supervisor password is
necessary to type in. And before you enter Windows operational system, you have
to input supervisor password. Or if you have set user password, you can type in
user password too.
2. User password
User password only could be set after you have set
supervisor password. Once you have set supervisor password, and user password
only could be used to access Windows operational system. Even though you can enter
CMOS setting program and change CMOS parameters, modify or clear user password, administrator password couldn’t be changed.
3. Windows open password
Please note that, Windows open password couldn’t be set the
same as supervisor password. Otherwise, after you cancel supervisor password,
Windows system still requires you to type in open password. And the previous
password you type in couldn’t be accessible too.
4. Hard disk password
Hard disk password is set to protect data stored on hard
disk from being used after laptop is stolen. After you set hard disk password,
supervisor password would become available too. If you don’t type supervisor
password, you wouldn’t read hard disk. Even though you remove hard disk into another
laptop computer, hard disk password still exists.
Hard disk password seems to be safe. But it is not recommended to use, because once your mainboard is destroyed or your laptop couldn’t boot because of any reasons, data on hard disk will lose.
Hard disk password seems to be safe. But it is not recommended to use, because once your mainboard is destroyed or your laptop couldn’t boot because of any reasons, data on hard disk will lose.
In a word, though password has helped us more in data
security, password has to be not set easily, because CMOS password set on
laptop couldn’t be cleared by removing battery like desktops. And password on
laptop CMOS is stored in logical circuits on mainboard, which can’t be recovered
generally. At this time, if you only want to reset Windows user password or open
password, Windows password recovery tool could help you, such as Windows
Password Genius, Offline & Registry Editor.
So we don’t think that CMOS
password set on laptop can achieve the highest encryption effect. To my
point of view, supervisor password and user password can be set, but other
kinds of password had better not be set easily. If you have to set it, please
remember it. Once you forget it, such as hard disk password, you have to pay
for it with high price. Actually, Smart Card and Fingerprint Boot
Identification System for laptop now will make traditional CMOS password
protection more effective.
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- How to Remove Hard Drive Password on Acer Laptop
- How to Clear BIOS Password on Dell Computer
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