Funny fact is that you cant even roll back once f6 is there !!
Removed batteries and used the clr_cmos pin to reset bios settings and still showing f6
Clearing the CMOS won't make the BIOS go back to older firmware.
Try this: remove the motherboard and CPU power connectors and use the clear_cmos pins for 5 seconds. (don't remove the battery)
I reflashed the bios to f5 and now no usb ports reads anything
Mouse, mobile, flash memory or anything
They only read during bios screen or before windows start up
Once windows boots all usb seems to be disabled