My pc keeps saying boot device not found and I’ve tried everything

[Bradley8]

 

 

I’ve tried so much and nothing has worked I’ve went into   
bios to try legacy mode but I don’t have legacy mode In my bios I’ve looked everywhere help me please…

[VH2000]

If you have tried everything you need a new computer!

If not:
Boot from an USB-Installation-disk and on the second setup page you find this at the left bottom:
Select repair and go to command prompt.

In Command prompt type:

diskpart

list disk

sel disk 0

list par

Now you should find a FAT32 Partition (100 MB)

What is the number (1?)

type

sel par 1 (if it is 1)

then type

list vol

assign letter="B"

exit

Check if your Windows partition is C from the list vol command!

If not change it in the following command

bcdboot c:\windows /l en-us /s B: /f UEFI

exit

That's it and you are ready

Close the Installation

remove the USB-Stick

Reboot

(In the bcdboot command I choose en-us because I assume that it is your locale)