Closed Blue screen while formatting lenovo g40-30 using flash drive (os win7)

Mga Boss pa help naman any suggestions. I try to format yung Lenovo G40-30 but still nag bluescreen pa din na update ko na yung bios and na turn off ko na din yung fast boots. napalitan ko na din yung USB mode to 2.0 (original mode is 3.0) and also yung OS optimized defaults ginawa ko na ng Win7 OS ( originally Win8 64bit). Thank guys