作为过去几年的 IT 管理员,在某些情况下,我在安全性方面有些过火,并且会做一些事情来将自己锁定在计算机之外。一个例子是设置一个我永远不会记得的BIOS或CMOS密码。(CMOS)
如果您不记得BIOS或CMOS密码,那您就完蛋了,因为您甚至无法启动Windows。早些时候(Earlier),我曾写过一种使用几种不同技术重置 BIOS 密码(reset a BIOS password)的方法,这是在这种情况下首先尝试的方法。
我最近遇到了另一个可以用来恢复CMOS或BIOS密码的程序。CMOSPwd在Dos、Windows 98、Windows NT、Windows 2000、Windows XP、Windows 2003、Linux、FreeBSD和NetBSD下工作。
该程序基本上解密了存储在CMOS中的密码,该密码用于访问BIOS设置。现在这个程序不能与所有的BIOS一起工作,但下面是它可以工作的那些:
- 宏基/IBM BIOS
- AMI BIOS
- AMI WinBIOS 2.5
- 奖励 4.5x/4.6x/6.0
- 康柏 (1992)
- 康柏(新版)
- IBM(PS/2、Activa、Thinkpad)
- 帕卡德贝尔
- Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03 , 4.05 rev 1.02.943, 4.06 rev 1.13.1107
- Phoenix 4 第 6 版(用户)
- Gateway Solo – Phoenix 4.0版本 6
- 东芝
- 真力时 AMI
如果您有幸拥有其中之一,则可以轻松恢复密码。使用该程序需要一点命令提示符(command prompt),所以在使用它之前请确保您熟悉它。
基本上,要运行它,请转到命令提示符并 CD 进入您存储文件的目录。在命令提示符下,键入CMOSPWD并按 Enter。
您将获得可与您的BIOS制造商进行比较的可能性列表。
要恢复密码,您需要记下已安装的BIOS右侧的值,然后您必须键入cmospwd /m[xxx]以执行该模块。如果这不起作用,您可以使用 /k 开关终止 BIOS 。(BIOS)
但是,如果您正在恢复笔记本电脑的密码,请不要(DO NOT)杀死CMOS 。在笔记本电脑上,CMOS密码通常存储在主板上的 eeprom 中,因此您需要 eeprom 编程器来检索它。
由于使用该程序有点复杂,请务必阅读事先提供的说明。享受!
Recover BIOS/CMOS Password using CMOSPwd
As an IT аdministrator for the last several years, there are some occasions where I go a little overboard with security and dо things to lock myself out of a сomputer. One example is to set a BIOS or CMOS paѕsword that I will never remember.
If you can’t remember a BIOS or CMOS password, you’re pretty screwed because you won’t be able to even boot up Windows. Earlier, I had written about a way to reset a BIOS password using a couple of different techniques, which is the first thing to try in this situation.
I recently ran across another program that you can use to recover a CMOS or BIOS password. CMOSPwd works under Dos, Windows 98, Windows NT, Windows 2000, Windows XP, Windows 2003, Linux, FreeBSD, and NetBSD.
The program basically decrypts the password that is stored in CMOS, which is used to access the BIOS setup. Now this program won’t work with all BIOS out there, but here are the ones it will work with:
- ACER/IBM BIOS
- AMI BIOS
- AMI WinBIOS 2.5
- Award 4.5x/4.6x/6.0
- Compaq (1992)
- Compaq (New version)
- IBM (PS/2, Activa, Thinkpad)
- Packard Bell
- Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107
- Phoenix 4 release 6 (User)
- Gateway Solo – Phoenix 4.0 release 6
- Toshiba
- Zenith AMI
If you are lucky enough to have one of these, you may be able to recover the password easily. Using the program requires a little bit of the command prompt, so make sure you are familiar with that before using it.
Basically, to run it, go to the command prompt and CD into the directory where you stored the file. At the command prompt, type in CMOSPWD and press Enter.
You’ll get a list of possibilities which you can compare against your BIOS manufacturer.
To recover the password, you need to note the value to the right of the BIOS you have installed and then you have to type in cmospwd /m[xxx] to execute the module. If that doesn’t work, you can kill the BIOS using the /k switch.
However, DO NOT kill the CMOS if you are recovering the password for a laptop. On laptops the CMOS password is usually stored in an eeprom on the motherboard, so you need a eeprom programmer to retrieve it.
Since using the program is a bit complicated, make sure to read the instructions provided beforehand. Enjoy!