Win 7 Ultimate boot failure

Balve

Honorable
Apr 4, 2013
18
0
10,510
The OS failed to boot after a system check with Malwarebytes Anti Malware. I just clicked remove files and restart. Could it possibly be that software deleted some boot files?
Anyway, I followed some instructions and booted with a bootable usb, followed the links, clicked repair automatically, restarted, and from that moment it keeps going to the same screen!
It's either "no bootable drive detected" or if I leave the usb in, the "status: 0xc0000098, boot/BCD" stuff.
Everyone talks about the advanced boot mode/page (the F8 pressing way), but I cannot get there at all (I have a Gigabyte GA-H87M-D3H mobo)

Please help, I have no clue what to do!
Thanks!