To reset the BIOS password on a , you must use the physical Clear CMOS (Maintenance) jumper located on the system board . Standard methods like removing the CMOS battery are often ineffective because Lenovo stores these passwords in non-volatile memory. Hardware Reset Steps
99% Time required: 45 minutes (first time) lenovo thinkcentre m720q bios password reset
: Reassemble the case, reconnect power, and turn on the PC. Press To reset the BIOS password on a ,