Upon successful boot, enter the BIOS, navigate to the save/exit tab, select Load Optimized Defaults , save, and exit.
Lenovo uses the "CIH61C" variant. Search your specific desktop model (e.g., Lenovo H330).
Check your motherboard for revision numbers (e.g., Rev 1.01A) to ensure file compatibility.
wmic bios get smbiosbiosversion
The jumper must be moved back to the original position once the update is complete.
Updating the BIOS on an IPMSB-H61 motherboard (commonly found in Pegatron / HP / Compaq pre-built PCs) requires specific steps because these boards often use proprietary BIOS formats that standard tools cannot open.