Windows 10: How do i access EFI system partition?

So, I have been trying to access the EFI partition where bootmgr.sys is located, so I can sideload another OS on the computer. However, when I try to open the drive, it says, "Access to E:\ has been denied to gain access, use thesecurity tab. BUT THERE IS NO SECURITY TAB.

As you can see, there is no security tab. So HOW DO I OPEN THE DRIVE? I tried using the hidden admin account, but that didn't work either.

:)

 

Access to EFI Partition

Hi there

@RichardC

I think you can just un-assign it with diskpart (command mode)

DISKPART
LIST VOLUME
ASSIGN <letter name> -R
EXIT

(space between letter name and the '-R' parameter).


Too many people seem scared of using the command line these days !!!!


Cheers
jimbo

 

Access to EFI Partition

After the latest windows update, when I open file explorer, three extra drives were added besides the c drive. Winretool partition was assigned y drive, PBR partition was assigned x drive and ESP (efi system partition) was assigned e drive.

I was able to remove the y and x drives and they disappeared from file explorer. But the drive with the efi partition won't let me access it. It says that I have to go to security tab to access. When I go to properties, there is no security tab. Since the partition is fat32, I'm guessing I can't access the normal way. I've had this problem before but I can't remember the efi boot partition being one of them.

Any suggestions as to accessing the partition to remove the e drive tag?

 

Move EFI partition

its to enable win 10 to update to its anniversary edition.. it cant do this due to lack of C drive space i have had a quick try with the trial version of easus.. it didnt seem to be able to do what i want..

i am assuming i cant just delete the efi partition but maybe i could.. as yet i havnt even figured out how to get into the bios of the thing.. maybe that should be my next step.. *Smile

diskpart could probably do it but figuring out how (it aint that user friendly) might be difficult without step by step instructions..

trog