boot repair

boot repair

sudo apt-get update

sudo apt-get install software-properties-common 

sudo apt-get install python-software-properties

sudo add-apt-repository ppa:yannubuntu/boot-repair

sudo apt-get update

sudo apt-get install -y boot-repair

boot-repair

efibootmgr -v

sudo efibootmgr -o 0003,0000,0007,2003,0001,2001,2002

elementary@elementary:~$ efibootmgr -v
BootCurrent: 0000
Timeout: 5 seconds
No BootOrder is set; firmware will attempt recovery
Boot0000* USB Hard Drive 1 - Corsair Slider 3.0	BBS(HD,,0x900).............
Boot0001* Notebook Hard Drive	BBS(HD,,0x0)...............................

failed to open efi microsoft boot grubx64.efi

no boot order is set firmware will attempt recovery

UEFI, GNU/Linux and HP notebooks – problems and how to get it working