I had windows 10 preinstalled on my system with boot type UEFI mentioned in my lenovo ideal pad boot options. I dual booted with linux mint tara which worked fine with grub loader showing both the OS entries. Later on i decided to delete linux partition which happened to be the system FAT32 partion on which efi bootloader was installed i suppose . to get rid of grub i deleted the EFI dir from windows . Now i am not able to boot into windows as it is on a boot loop keeps saying System BootOrder not found. reSet to default. Help !
\EFI folder contained subfolders for both the Mint GRUB2 bootloader and the Windows bootloader – and you deleted both. To reinstall the Windows bootloader, use bcdboot:
Boot from the Windows 10 install CD or USB. Make sure you boot it in UEFI mode (the firmware might have two very similar boot choices).
Choose the "recovery console" option. (I don't remember what the menu item is called, exactly, but ShiftF10 should open it anyway.)
dir d:\, etc. to find your main Windows partition (with the
Once you know the correct drive, run
bcdboot c:\windows(replace c: with the correct letter).