versionv22 :
no idea it does not fix it and i cant access anything other than BIOS
Without knowing what the error is, no way to know what the issue may be.
First start at the beginning, why did you run driver sweeper?
Second, remove the 760 card, reboot the system with monitor in the motherboard video connection, what happens then?
If it boots to windows, shut down system, plug in the video card move video cable to card connection, boot it again, what happens? If it gets to Windows, install the drivers for the video card.