Reset Dell BIOS password is easy in most models. A BIOS password is a password that can be set within the BIOS to prevent a computer from booting to the hard drive. This is different from a Windows log-in password. Typically, a system will not have a BIOS password enabled, unless you go into the setup and apply one. The advantages of a BIOS password is that it essentially disables the entire computer, wherein a user might be able to boot to a CD or USB drive otherwise.
How To Reset Dell BIOS Password
To reset the BIOS password on a Dell, you must first shut down the computer, turn it on its side on a flat surface, then remove the side panel. You should discharge any static you might be carrying by touching the bare metal surface of the case, then unplug the computer.
The jumper pins to reset Dell BIOS password will usually be located near the CMOS battery–a nickle-sized battery on the motherboard. There should be two sets of jumpers near each other. One will be the CMOS jumper and the other will be the password (PWRD) jumper. Each will have three pins. Locate the password jumper and find the plastic clip that is covering pins 2 and 3. Remove the clip and move it to pins 1 and 2. Let it sit there for a couple of minutes, then move it back to pins 2and 3.
Replace the cover, plug it back in and boot the PC. It should now boot without a BIOS password.
Reset Dell BIOS Password Resolution
If you still can’t reset Dell BIOS password on your Dimension or Dell Latitude computer, be sure to contact Dell support directly or visit our computer repair forums and we’ll help. The best information regarding how to reset Dell BIOS password will definitely be located in the Dell manual for your specific model. Read our other Dell computer repair articles for additional help.

I am having difficulty booting my computer, this is that displays on my screen. “Windows could not start because the following file is missing or corrupt: \WINDOWS\SYSTEM32\CONFIG\SYSTEM
This has nothing to do with the BIOS password. I recommend joining our free forums at http://www.pctechbytes.net/forums/ we can help you easier there.
I have a Dell Dimension 2350 and when I boot the system it seems
to turn on but nothing shows up on the screen. The troubleshooting lights only light the letter D. Could this be the video controller card?
Could be numerous things..I recommend you join our free forums at http://www.pctechbytes.net/forums and ask your question there. Multiple techs can help you solve your problem.
i try it but it still wont reset the setup password
This is a great tutorial for how to remove the Administrator/BIOS password, but sometimes this may not be as simple for example on the Dell Latitude D430 many of my clients tried this method with no luck. We can provide the code from our website http://www.thepassworddoctor.com and many other codes.. Feel free to have a browse and look at our service in action.
Regards
The Password Doctor
I got my Dell bios master password and Hard Drive (HDD) master password. They also do this for HP, Compaq, Fujitsu, Acer, Toshiba, Sony, IBM/Lenovo and Samsung laptops and desktops.
Just go to http://www.mastermindit.biz/freedellbios.html
Send your Dell model and service tag and they will email back your bios master password and or HDD master password for your Dell computer.
I tried those steps but no luck. I called Dell and they want to replace the motherboard which will cost a few hundred dollars, what a nightmare.
Looking around I found this service, does anyone have any experience with it? They sell a guide for $10.
Sorry to hear that. No I have never heard of the site you mentioned.