BootRec

If you run bootrec /scanos and there is 2 windows installation especially if one shows up as C;\Windows.old\WINDOWS then there might be a conflict with the regular C:\WIndows

if you can't run bootrec /fixboot then run bootsect /nt60 sys

bootrec /fixmbr

bootrec /fixboot

bootrec /scanos

bootrec /rebuildbcd

Volume 1 or the EFI partition needs to be assigned a letter for the data to boot into

select volume 1

assign letter=S

exit

bcdboot C:\Windows /s S: /f UEFI - this is telling the computer that the bdc

if EFI is corrupted - format S: /FS:FAT32 /Q then run the bcdboot again

bcdboot C:\Windows /s S: /f UEFI