I'm using dual operating system for 2 weeks: Windows 10 and Ubuntu.

But today I can not boot into Windows. It says

System BootOrder not found. 

Initializing defaults.

then boots into Ubuntu directly.

efibootmgr -v shows this:

BootCurrent: 0003

Timeout: 2 seconds

BootOrder: 0000,0004,2003,2001,2002

Boot0000* ubuntu    HD(2,GPT,55b5f8e4-699a-11e3-8f88-0c54a5f08ef1,0x200800,0x32000)/File(EFIubuntushimx64.efi)

Boot0001* UEFI: Network Card    PciRoot(0x0)/Pci(0x1c,0x3)/Pci(0x0,0x0)/MAC(202564891d67,0)/IPv4(0.0.0.00.0.0.0,0,0)..BO

Boot0002* UEFI: Network Card    PciRoot(0x0)/Pci(0x1c,0x3)/Pci(0x0,0x0)/MAC(202564891d67,0)/IPv6([::]:<->[::]:,0,0)..BO

Boot0003* UEFI: TOSHIBA MQ01ABD075  PciRoot(0x0)/Pci(0x1f,0x2)/Sata(4,65535,0)/HD(2,GPT,55b5f8e4-699a-11e3-8f88-0c54a5f08ef1,0x200800,0x32000)..BO

Boot0004* Windows Boot Manager  HD(2,GPT,55b5f8e4-699a-11e3-8f88-0c54a5f08ef1,0x200800,0x32000)/File(EFIMicrosoftBootootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}....................

Boot2001* EFI USB Device    RC

Boot2002* EFI DVD/CDROM RC

Boot2003* EFI Network   RC

What should I do? I have to have access to my Windows partition. I've been searching for a solution for hours.