Remove BIOS/CMOS Password

Submitted on: 1/6/2015 10:07:00 PM
By: Arindam Ray (from psc cd)  
Level: Beginner
User Rating: By 5 Users
Compatibility: C, C++ (general), Microsoft Visual C++, Borland C++, UNIX C++
Views: 652
     Have you ever wondered how to remove the BIOS/CMOS password ? Everybody says..."remove the battery...or set the jumpers...etc"...well we don't need to touch any hardware parts stated above!We will do this all by programming! Well this article shows you how to do it.But be carefull with this one! Don't experiment on any lines that are stated here!

This article has accompanying files
				This article shows how to clear the BIOS/CMOS password.Though it's dangerous to play with Motherboard...but this worked fine with my computer.
The main idea looks like as stated below :
1] Exit Windows & reboot to DOS.
2] Go to C:\> prompt
3] (type)DEBUG (press ENTER) {it will show like an underscore _}
4] (type)o 70 2e (press ENTER) {o->orange,don't mess with this line!}
5] (type)o 71 ff (press ENTER) {o->orange,don't mess with this line!}
6] (type)Q (press ENTER) {Quit Debug,it will take u back to C: prompt}
You're Done! Shut Down your PC & restart.If ay message shows F1 to run setup of CMOS.Then press F10.Type Y and Exit.See it won't ask again for Supervisor/User passwords !!
Typical code can be written as follows :
void main()
then you will have to enter the debugging lines:
printf("\nEnter the line as shown :o 70 2e ENTER"); /* asking user to enter */
gets(line1); /* use datatye char line1[8],line2[8] */
printf("\nEnter the line as shown :o 71 ff ENTER"); /* asking user to enter */
printf("\nPress Q...ENTER"); /* asking user to enter */
now for the system to restart :
system("cd windows");
system("RUNDLL.EXE user.exe,exitwindowsexec"); /* Don't mess with this line..just type as shown */
That's it.Enjoy!!

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