With the explosive growth of information quantity, information security is becoming increasingly important. However, computer is the most commonly used to access and store information, and we have to deal with it in everyday life. Therefore, computer security should not be ignored.
We protect our computer not to be invaded generally by setting a password, for greater security, we will usually set it complicated as soon as possible, but the probability we forgotten password will increase at the same time. Therefore, we need to know the type of computer system passwords and password reset solutions, that will help you out of trouble quickly.
1.Reset BIOS password
1).Using a Standard BIOS Backdoor Passwords
Some BIOS manufacturers have provided backdoor passwords for their own technicians to use so they can access the BIOS when the hardware is being serviced. Here are some of the ones that have been reported, these passwords are case sensitive, so you may wish to try a variety of combinations.
WARNING: Some BIOS configurations will lock you out of the system completely if you type in an incorrect password more than 3 times. Read your manufacturers documentation for the BIOS setting before you begin typing in passwords.
Award BIOS backdoor passwords:
ALFAROME, ALLY, ALLy, aLLy, aPAf, award
AMI Backdoor BIOS Passwords:
AMI, AMI?SW, AMI_SW, BIOS, CONDO, HEWITT RAND, LKWPETER, PASSWORD
Phoenix BIOS Backdoor Passwords:
phoenix, PHOENIX, CMOS, BIOS
Other BIOS Passwords by Manufacturer: (manufacturer name — password)
Biostar — Biostar
Compaq — Compaq
Dell — Dell
Enox — xo11nE
Epox — central
If the standard backdoor passwords didn't work, you’d better try to flash the BIOS via hardware.
Removing the CMOS Battery
The simplest way to remove a BIOS password is to simply remove the CMOS battery. A computer will remember its settings and keep the time even when it is turned off and unplugged because these parts are powered by small battery inside the computer called a CMOS battery. If we remove this battery for 5-10 minutes, the CMOS will reset itself and forget alot of its settings, including the BIOS password.
This works only if you have access to your PC and can run software (meaning no Administrator password is set).
Restart your computer, hold down F8 once you enter the Windows Boot Menu choose Safe Mode with Command Prompt, and now type in the following:
net user abc /add
net localgroup Administrators abc /add
The first command adds a new user called “abc”, and the second command adds that user to the Administrators group, restart your computer, login windows with new “abc” and reset the forgetten account password.
2).Free software — Ophcrack
The Ophcrack is a free Windows password cracker based on rainbow tables. It is a very efficient implementation of rainbow tables done by the inventors of the method. It comes with a Graphical User Interface and runs on multiple platforms.
3). Windows password reset
Like many other password programs, Windows Password Reset does not actually recover the password but instead removes it.
Windows Password Reset does not have a complex user interface, the program was very easy to burn to a CD/DVD using the included image burning software and was even easier to use.
With Windows Password Reset, you just need to follow the steps:
Step1. Enter the full path to Windows Password Reset ISO image file
Step2. Choose a device to burn the ISO image file: a CD/DVD, USB Flash drive or Floppy disk
Step3. Start to burn the ISO image file
Step4. Boot the locked computer from CD/DVD and remove the password
Windows Password Reset not even supports Windows 7 password reset, but also all the Windows Version like Vista, Windows Server 2008 & 2003, Windows XP, Windows 2000, and Windows NT.
We have introduced several methods above, which are about how to reset system password of your windows PC and we hope these methods can help you a lot.