Windows 10: I accidentally deleted my EFI System Partition and am unable to boot into windows

I accidentally deleted 100MB ESP when installing linux and now the pc boots into a blue screen that says "Boot Options Restored". It lets me choose "Reset system", "Continue boot", or "Always continue boot" but whatever I choose turns the pc off and boots into this screen again. I have lots of important files so I don't want to do a clean reinstall.

:)

 

How to delete EFI Boot Store accidentally created on wrong partition?

I have recently migrated (cloned) my Windows 10 installation from an HDD to an SSD.

I had created a new EFI System Partition on the SSD and was creating a corresponding BCD entry using the `bcdboot` command when I accidentally created a BCD store in the C partition, instead of the separate FAT-32 formatted SYSTEM partition.

While my system loads successfully from the SYSTEM ESP now, I need to get rid of the the accidentally created BCD store at `C:\EFI\Microsoft\Boot`. However, I get an "Access Denied" message if I try to delete the directory and I am unable to assign "Full Access" to the Administrator. I also could not find a `bcdedit` command to delete a store.

Is there a way to get rid of this directory?

 

My EFI System and Recovery Partitions are on the wrong disk (Windows 10)

Please boot into WinRE and do the following:

1. Delete the EFI partition on disk 0
   
2. Re-run the bcdboot command suggested earlier. Be sure to use the correct drive letter. You can determine the OS partition's drive-letter by running diskpart & list volume commands.
   

Edit:

"Volume Z" gave you two more options. If you don't mind having the EFI on disk 0, then all you need to do is delete the unwanted boot entries using msconfig.

OTOH, if you want to have the EFI partition on Disk 2, then delete the EFI partition on Disk 0 and run the bcdboot command.

 

Accidentally deleted Windows 10 boot partition. How do I restore it?

Hi.

You can create a lost/deleted EFI partition by CMD.

1) Create an installation media

2) Boot PC with an installation media

3) Press SHFIT + F10 on the first screen to bring up Command Prompt

4) Run the following commands and click Enter each time at Command Prompt:

diskpart

list disk

select disk N (N refers to the disk which contains the deleted the EFI System partition)

list partition

create partition efi

format quick fs=fat32

list partition

list volume (find the volume letter which belongs to the installed Windows OS)

exit (exit diskpart)

bcdboot M:\windows (M refers to the volume letter of installed Windows OS)

(bcdboot m:\windows command will copy the boot files from Windows partition to the EFI system partition and create BCD store in the partition)

Next remove installation drive and restart your computer

Let me know if you have any questions