Help needed!! bought the Easy Recovery Essentials and nothing


New Member

So my computer at the office crushed,

Status: 0x0000225

File: CI.dll

So i bought the Easy Recovery Essentials,opened the ISO
and copied the files into a USB , by i couldn't find any manual or help i don't even know if that stage is correct

Well i selected to boot from the USB
and the message is "missing operating system"

i have windows 7 and bough both Home and Premium

and nothing , please help i'm tired and want to go home