使用軟體:
biospw
BootSafe
FMB109WW
cmospwd




在進入系統前按下F8的按鍵,進入開機模式設定選擇第五個,
按下ENTER後即進入純DOS,在C:\提示符號後輸入如下指令~~
C:\Debug
-o 70 20
-o 71 21
-q
做好上述動作後重新開機即可進入Bios,但要重新設定Bios


或者是傳統的將水銀電池拔除,且拔除主機電源(若是NB也要同時將NB主電池拔除)等個三十分鐘,
接回主機電源開機,此時bios以回復原廠設定值,存檔後離開,再將主電源拔除,水銀電池接回,主電源接回,開機OK!


How to Bypass BIOS Passwords

BIOS passwords can be add extra layer of security for desktop and laptop computers, and are used to either prevent a user from changing the BIOS settings or to prevent the PC from booting without a password. BIOS passwords can also be a liability if a user forgot their passwords, or if a malicious user changes the password. Sending the unit back to the manufacturer to have the BIOS reset can be expensive and is usually not covered in an a typical warranty. However, there are a few known backdoors and other tricks of the trade that can be used to bypass or reset the BIOS password on most systems.

Backdoor Passwords

 

Many BIOS manufacturers have provided backdoor passwords that can be used to access the BIOS setup in the event you have lost your password. 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   BIOSTAR   KDD   ZAAADA
ALLy   CONCAT   Lkwpeter   ZBAAACA
aLLy   CONDO   LKWPETER   ZJAAADC
aLLY   Condo   PINT   01322222
ALLY   d8on   pint   589589
aPAf   djonet   SER   589721
_award   HLT   SKY_FOX   595595
AWARD_SW   J64   SYXZ   598598
AWARD?SW   J256   syxz    
AWARD SW   J262   shift + syxz    
AWARD PW   j332   TTPTHA    
AWKWARD   j322        
awkward            

AMI BIOS Backdoor Passwords:

AMI   BIOS   PASSWORD   HEWITT RAND
AMI?SW   AMI_SW   LKWPETER   CONDO

Phoenix BIOS Backdoor Passwords:

phoenix   PHOENIX   CMOS   BIOS

Misc. Common Passwords

ALFAROME   BIOSTAR   biostar   biosstar
CMOS   cmos   LKWPETER   lkwpeter
setup   SETUP   Syxz   Wodj

Other BIOS Passwords by Manufacturer

Manufacturer       Password
   
VOBIS & IBM merlin
Dell Dell
Biostar Biostar
Compaq Compaq
Enox xo11nE
Epox central
Freetech Posterie
IWill iwill
Jetway spooml
Packard Bell bell9
QDI QDI
Siemens SKY_FOX
TMC BIGO
Toshiba Toshiba

Toshiba BIOS

Most Toshiba laptops and some desktop systems will bypass the BIOS password if the left shift key is held down during boot

IBM Aptiva BIOS

Press both mouse buttons repeatedly during the boot

Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings

Many motherboards feature a set of jumpers or dipswitches that will clear the CMOS and wipe all of the custom settings including BIOS passwords. The locations of these jumpers / dipswitches will vary depending on the motherboard manufacturer and ideally you should always refer to the motherboard or computer manufacturers documentation. If the documentation is unavailable, the jumpers/dipswitches can sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label the jumper / dipswitch CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the dipswitches are usually found under the keyboard or within a compartment at the bottom of the laptop.

Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you locate and rest the jumper switches, turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.

Removing the CMOS Battery

The CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blank. (Along with any other machine specific settings, so be sure you are familiar with manually reconfiguring the BIOS settings before you do this.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with the system unplugged) for at least 24 hours. Some batteries are actually soldered onto the motherboard making this task more difficult. Unsoldering the battery incorrectly may damage your motherboard and other components, so please don't attempt this if you are inexperienced. Another option may be to remove the CMOS chip from the motherboard for a period of time.

Note: Removing the battery to reset the CMOS will not work for all PC's, and almost all of the newer laptops store their BIOS passwords in a manner which does not require continuous power, so removing the CMOS battery may not work at all. IBM Thinkpad laptops lock the hard drive as well as the BIOS when the supervisor password is set. If you reset the BIOS password, but cannot reset the hard drive password, you may not be able to access the drive and it will remain locked, even if you place it in a new laptop. IBM Thinkpads have special jumper switches on the motherboard, and these should be used to reset the system.



billtang0311 發表在 痞客邦 PIXNET 留言(2) 人氣()


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  • Ken
  • 但是拔掉電池以後,我要再設回set supervisor password就設不上去了,跑到設密碼的地方密碼也設了,但是密碼卻跑不回來,開機就根本沒有密碼,請問,我應該怎麼做?
  • Ken
  • 請問重新設定Bios要怎麼設定阿?
  • 看 Bios 的設計,有的需要把密碼 enable ,找一下,應該都在那個設定的附近。或者當你設定好密碼以後是否有存檔(按F10)??

    billtang0311 於 2010/07/01 22:35 回覆

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