googled showed heading:
Solved: No access to BIOS | Aspire V5-571G

matches

Can't access BIOS Acer aspire v5 - 571g
which is the OP's make and model

furthermore someone in here said what that post said.

remove the hard drive then try it .. it is in that post to do that as well.

post #5 the one right after mine.

as well as

if you click that link on the first page is this


Look like a match to what the OP said he has to me ...
So I have no idea what you're talking about...

I can access the OS in my USB flash drive but i cant make my hdd as primary thats the problem its like the bios vanished but keeps directing me straight to kali boot menu

With the installation media unplugged, if you boot your computer does it successfully boot Kali?

As your bios MUST boot before any operating system can be booted, it must still be intact.

1 members found this post helpful.

Yes it successfully boots Kali, if i take off the usb from the pc it will say there is no operating system.

... You're confusing me here. The USB has the Kali installation media on it, correct? And as long as the USB is plugged in, it boots to Kali, but with the USB unplugged, it says no operating system? If that's the case, it seems it did not (completely) install Kali.

I tried kali
and it hosed my sd card on the first boot attempt
wiped the data on it and half way installed syslinux boot loader
there was some kind of systemd crash it tried to make the
sd card the default boot device when I did get in to the
bios the internal HDD wasn't even a boot option until I pulled the usb and the sd card and reran the BIOS setup (cold reboot)

from now on I'm going to stay as far as I can get from systemd
I've seen reports of systemd erasing the BIOSs and bricking the motherboard
so
ya may need a new mother board
I hope I'm wrong
best of luck

I've got an acer netbook for which I use as a GRUB Dual boot between Windows 7 & Mint from the HD.

I also take occasional backups, which involve booting Mint from a USB key & writing to an external USB drive.
It's a nice little portable device.