I think I am stuck on the same problem. my Sony laptop crashed white I was using fat32 formatter to format a toshiba external hard drive but I didn't realize my laptop also has a toshiba hard drive and I think I just wiped my computer. I have read all the posts here but I'm not confident in using dos and don't completely understand the instructions. At the moment the screen tells be to insert the boot disc which I don't have because the laptop didn't come with one when I bought it. I am downloading one which I hope will work but I have no idea where to go from there. I am hoping once I have a boot disc I can access system restore and restore it back to it's previous state. Does anyone know if this might work? Have I deleted all my data and is there any way to get it back now. Do you think Sony support could help walk me through?