The scenario is this. I was on the reformat thing and when I format the hdd it has a error pop up stating that the netbook is not compatible with gpt, because I boot the usb using an gpt not mbr using rufus. So I reformat my usb again and this time it's mbr after that I check again the cmos/bios utility in my surprise the "boot manager just vanished". In manay ways I tried to google every possible solutions and your channel give me a hint so I tried it out. So I use your way and when I go to cmos utility I can see my usb after I insert my usb 2 with OS it cannot be detected.
Acer one s1001
Win 8, 32 bit