BOOTMGR missing

I restored from a backup of drive C. But when I booted I got BOOTMGR missing. So next I selected to restore the MBR. But then it gave the same error. So I tried the NTFS (boot) sector but that causes "Your PC/Device needs to be repaired" "A required device isn't connected or can't be accessed".
I can't select C + MBR + NTFS together because there is some sort of bug in Acronis that won't let me do that (I posted an earlier issue regarding that here https://forum.acronis.com/forum/acronis-true-image-2019-forum/acronis-2019-wont-restore-screwed-partition ).
I have had this problem in the past when restoring with Acronis 2019. At those times I found that the drive C was not marked as Active. But I don't remember how I fixed that.
Does anyone have any suggestions?


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I'm not sure what you mean by "in terms of the BIOS mode"
"same BIOS mode" I didn't change anything in the BIOS.
I'm sure the problem is that Acronis did not mark drive C as Active. I have used DEBUG long ago to fix that but I was hoping that Acronis would do it. And I don't know if DEBUG is even available anymore or if the partition table has changed.
I tried a full restore but selecting C + MBR + NTFS together does not work and I don't want to restore my 2nd partition.
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Eddy, by BIOS mode, I mean how Windows boots - not asking you to change anything in the BIOS.
Windows can boot in one of two BIOS modes:
UEFI BIOS mode - where in the BIOS settings, Windows Boot Manager is the boot device, and your system has an EFI System Partition where the Boot Configuration Data used for booting is stored. UEFI mode uses GPT partitioning.
Legacy BIOS mode - where in the BIOS settings, the boot device is the actual disk drive, and your system can have a Microsoft System Reserved Partition where the BCD is stored, or else this can be stored (hidden) in the C: Windows OS partition. Legacy mode uses MBR partitioning.
See KB 59877: Acronis True Image: how to distinguish between UEFI and Legacy BIOS boot modes of Acronis Bootable Media - for more information.
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The BIOS shows that it is in Legacy mode and I have never changed it so I'm sure the backup was Legacy also. There is a Reserved Partition . Maybe I didn't restore that. I'll try restoring that next.
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My mistake, the backup doesn't have the Reserved Partition … my drive C has that. That is probably because when the restore didn't work I installed a new Windows 10. Note that my original (which I had backed up) was an upgrade from Windows 8 which probably didn't have the Reserved Partition and when I installed a new Windows 10 that created it. I'll just try restoring C+BOOT this time.
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C+BOOT didn't work. This time I restored my Wife's drive C to my computer which has a C and D (with a Microsoft Reserved partition in between). That boots just fine. So hopefully that fixed the boot problem and I'm now restoring my drive C. I'll let you know what happens.
Something I'm curious about, during the restore ATI will not allow me to assign drive letter C. The choices are Auto, D, etc. Is there a trick to assign drive C. Maybe that is the problem I'm having … without a drive C it won't find BOOTMGR.
Please, I really need help here.
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Something I'm curious about, during the restore ATI will not allow me to assign drive letter C. The choices are Auto, D, etc. Is there a trick to assign drive C. Maybe that is the problem I'm having … without a drive C it won't find BOOTMGR.
Eddy, you are wasting your time trying to assign drive letters when in the rescue media boot environment because anything you could assign would be forgotten when Windows boots.
C: is most likely already assigned in the boot environment to something else - Windows will sort out the drive letters itself provided you have the correct drive selected in the BIOS boot settings (or the Windows Boot Manager from the correct drive for UEFI systems).
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Well after restoring my wife's .tib which boots ok and then restoring just my drive C still gives OOTMGR missing.
This is becoming very serious. Please check with the developers and find out what is happening.
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This is becoming very serious. Please check with the developers and find out what is happening.
Eddy, I and all the other MVP's in these forums are just users, no different to you. We do not have any direct access to the Acronis Developers, and if you need such help, you need to open a Support Case with Acronis.
You really do need to do a full disk recovery from a backup that came from this same computer, not trying to do a 'pick & mix' with bits from different computers then expecting it to work.
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Sorry, I thought you were with Acronis. Is there a technical support that I can contact?
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Eddy,
Yes, there is a support channel. You can begin by clicking the link to the right of this page "How to get support".
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