i'm trying reset the Bios Administrator Password of my dell atitude e6520 purchased on second hand. i have been trying all software way for resting it for a long and it didn't work so please help with a Hardware reset.

How to remove a BIOS password. Power on the system. As soon as the first logo screen appears, immediately press the F2 key, or the DEL key if you have a desktop, to enter the BIOS. Use the arrow keys to navigate to Security or BIOS Security Features. Highlight Set Supervisor Password or Change Supervisor Password and press the ENTER key.
When IT administrators need to change the BIOS password on Windows 10 desktops, they need to take a few steps to unlock the BIOS or UEFI interface. Find out how to complete this process to change, set or reset a BIOS password on Windows 10.
To reset the BIOS password, unplug your laptop, screw the cabinet and remove the CMOS battery for about half an hour. Put it back afterwards. Then you will find that computer is ready to go. 2. Using the Motherboard Jumper. Most of the motherboard contains a jumper which can clear the CMOS settings, including the BIOS password. Alternatively, the same option can also be found at the bottom of our screen, which reads ‘Setup Defaults’. Pressing the F9 key will also trigger the option. Once selected, the BIOS should confirm the change. Simply highlight the ‘Yes’ option and hit enter. The BIOS should be reset within seconds. This is how you remove the bios password if you don't know it.This should work on most if not all ProBook, EliteBook, ZBook models. HP used to generate and p
4.) Log in using the new BIOS administrator password (the password is password) 5.) Choose User Management and delete any previous ProtectTools users. 6.) Choose Change Password under User Tools to remove/change BIOS administrator password. 7.) Save the new settings & exit setup.
1. Power off your Lenovo laptop, disconnect with the power source, unplug all of the cables from laptop. 2. Remove the battery from laptop, and then remove the bottom of the laptop's case. 3. Find the CMOS battery, and remove the CMOS battery from laptop gently.
Simply start or restart your Asus laptop. While the laptop is powering on, then press the F2 key or Esc key to get into the BIOS settings. A short menu appears. Navigate through the Main menu and click ‘Security.’. Be sure to locate the ‘Administrator Password’ and click on it. Afterward, a small pop-up box will appear. wKpCRnc.
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    • how to change bios administrator password