Eliminate BIOS Login Password using DOS
If you have set the password to login to computer BIOS but you already forget it, you can go through the following steps to help you eliminate the BIOS password. Firstly, you have to use start up disk entering to DOS/Command Prompt.
1. Enter c:\windows\command this directory.
2. Type Debug and press Enter.
3. Type “-o_70_20” and press Enter. ( “_” represented space)
4. Type “-o_71_21” and press Enter
5. Type “-q” and press enter
6. Done.