article

Remove BIOS/CMOS Password

Email
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 up...press 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()
{
system("cd\\");
system("DEBUG");
}
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 */
gets(line2);
printf("\nPress Q...ENTER"); /* asking user to enter */
now for the system to restart :
system("cd\\");
system("cd windows");
system("RUNDLL.EXE user.exe,exitwindowsexec"); /* Don't mess with this line..just type as shown */
That's it.Enjoy!!

winzip iconDownload article

Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. Afterdownloading it, you will need a program like Winzip to decompress it.Virus note:All files are scanned once-a-day by Planet Source Code for viruses, but new viruses come out every day, so no prevention program can catch 100% of them. For your own safety, please:
  1. Re-scan downloaded files using your personal virus checker before using it.
  2. NEVER, EVER run compiled files (.exe's, .ocx's, .dll's etc.)--only run source code.

If you don't have a virus scanner, you can get one at many places on the net including:McAfee.com


Other 4 submission(s) by this author

 


Report Bad Submission
Use this form to tell us if this entry should be deleted (i.e contains no code, is a virus, etc.).
This submission should be removed because:

Your Vote

What do you think of this article (in the Beginner category)?
(The article with your highest vote will win this month's coding contest!)
Excellent  Good  Average  Below Average  Poor (See voting log ...)
 

Other User Comments


 There are no comments on this submission.
 

Add Your Feedback
Your feedback will be posted below and an email sent to the author. Please remember that the author was kind enough to share this with you, so any criticisms must be stated politely, or they will be deleted. (For feedback not related to this particular article, please click here instead.)
 

To post feedback, first please login.