Unable to boot after restoring UEFI System
I restored my UEFI system and it failed to boot. Acronis still restores the MSR partition in the wrong order. This is what was keeping my system from booting. In the past I was able to repair the EFI partition and boot my system. I was unable to repair this particular system. I received the message access denied when I tried to run the command bootrec /fixboot. This particular computer has McAfee Virus Protection software that is keeping me from fixing my boot problem. How can I get this computer to boot?
Was the partition order working and correct when you made the disk backup image? Yes
Did you restore the backup at a disk level, or did you have to specify the settings for each individual partition? Disk Level
If McAfee is getting involved then you are trying to run the bootrec /fixboot command from within Windows - you should be booting from either a WinPE rescue media or else Windows install or rescue media where McAfee cannot get involved at all.
I was booting from WinPE rescue media when running bootrec /fixboot command.
Are you sure that it was McAfee that was giving you the access denied messages when trying to run bootrec /fixboot?
Looking around at other hits in Google turned up the following suggestion that may help?
Too late but may be useful for other people, some "Access denied" errors in diskpart may be easily solved.
Type at elevated (administrator) CMD prompt:
diskpart
list disk
select disk x
attributes disk clear readonly
list volume
select volume y
attributes volume clear readonly
exit...where x and y are numbers of affected disk and volume.
The above was from webpage: Bootrec /fixboot access denied. Various solutions not working
I'm going to make a VM out of the backup and will give that a try. I'm really not sure if it was McAfee. That was my best guess. This is an industrial computer so I'm limited on what I can do. I was working on reloading the system until 1:00 AM last night because my backup didn't work. I was not a happy camper.
Partition was hidden is the problem. I used diskpart and set id command to fix the problem. Thank goodness. I didn't want to abandon my Acronis backup strategy for these systems.
I use this to fix the EFI partition. http://www.fixedbyvonnie.com/2013/12/how-to-repair-the-efi-bootloader-in-windows-8/#.XUY21-hKh1u As you can tell by the document name I've been using it for a long time.
I use this to change the hidden partition to a data partition and back again. I had to use the override switch to change it back to hidden. https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/set-id#parameters
I was amazed that it even put the partition in the proper order.
My last reply is being reviewed so we will probably never see it. EFI partition was hidden. That is what caused the error. I'm working on a Windows 7 Embedded system. I had to use Windows 10 WinPE rescue media. Windows 7 WinPE rescue media wouldn't update the BCD.
I used this to unhide the EFI partition and hide it again. Changed hidden to basic partition and back again..
Using commands below after assign letter=v: set id=ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 After updating EFI partition run commands below after sel vol 3 set id=c12a7328-f81f-11d2-ba4b-00a0c93ec93b
I used this to change the EFI boot.
diskpart
sel disk 0
list vol
sel vol 3
assign letter=v:
exit
cd /d v:\EFI\Microsoft\Boot\
bootrec /fixboot
ren BCD BCD.old
bcdboot c:\Windows /l en-us /s v: /f ALL
Glad to hear that you have got to the bottom of this issue and been able to resolve it! Thanks for sharing your findings on how to do so.