Question VAIO´s assist bypass

[6Storms]

I bought an used VAIO MODEL pcg61a11u and after formating it's HDD with another pc I'm prompted with a "operating system not found" screen. I feel that the original owner changed the BIOS to legacy but I cant acces the BIOS anymore since the assist function no longer exists. what can I do? should I try to install windows in legacy? I'm not sure how to do that, please help I really need this to work.

 

[bignastyid]

To enter bios press f2(might have to spam it) on the initial splash screen(some models use f10 instead of f2).

 

[6Storms]

To enter bios press f2(might have to spam it) on the initial splash screen(some models use f10 instead of f2).

The issue is that VAIO's BIOS is behind a custom wall called VAIO RESCUE, but the owner destroyed such software and the motherboard NEEDS to acces such function since its custom BIOS wont show the options needed to to do the formating.