Remove old EFI entries from boot menu.

gistfile1.md

bcdedit.exe /enum firmware


固件启动管理器
---------------------
标识符                  {fwbootmgr}
displayorder            {ae2112ee-36a8-11e9-adf2-806e6f6e6963}
                        {bootmgr}
                        {b592ec8e-3612-11e9-ba28-806e6f6e6963}
                        {b592ec8f-3612-11e9-ba28-806e6f6e6963}
                        {b592ec90-3612-11e9-ba28-806e6f6e6963}
                        {b592ec91-3612-11e9-ba28-806e6f6e6963}
                        {b592ec92-3612-11e9-ba28-806e6f6e6963}
                        {b592ec93-3612-11e9-ba28-806e6f6e6963}
                        {b592ec94-3612-11e9-ba28-806e6f6e6963}
                        {b592ec95-3612-11e9-ba28-806e6f6e6963}
                        {b592ec96-3612-11e9-ba28-806e6f6e6963}
                        {b592ec97-3612-11e9-ba28-806e6f6e6963}
timeout                 2

Windows 启动管理器
--------------------
标识符                  {bootmgr}
device                  partition=\Device\HarddiskVolume1
path                    \EFI\Microsoft\Boot\bootmgfw.efi
description             Windows Boot Manager
locale                  zh-CN
inherit                 {globalsettings}
default                 {current}
resumeobject            {843843ba-2b0a-11e9-8462-ceb5f44e3110}
displayorder            {current}
toolsdisplayorder       {memdiag}
timeout                 0

固件应用程序(101fffff)
-------------------------------
标识符                  {ae2112ee-36a8-11e9-adf2-806e6f6e6963}
device                  partition=\Device\HarddiskVolume1
path                    \EFI\Manjaro\grubx64.efi
description             Manjaro 

bcdedit.exe /export newbcd

copy newbcd bcd

bcdedit.exe /store newbcd /delete [entry]

bcdedit.exe /import newbcd /clean