Salta al contenuto principale

Recovery Not Curing "BOOTMGR is missing" Problem

Thread needs solution

Hello and I hope you can help me.

I'm nearly 80 and non-technical, so please be gentle !

I've been using ATI 2020 with Win 10 successfully for the last three years, but it has now let me down for the first time.

I take a full back up of all partitions every Sunday and thought I was fireproof !

However, I suddenly found I could not boot my desktop computer due to a "BOOTMGR is missing" warning.

I used the Acronis Bootable Recovery DVD (that I made originally) to load ATI and then did the usual recovery of System Reserved and Win 10 ("C") partitions, but still get the warning when trying to boot from the hard drive.

It would seem that the BOOTMGR file is not being saved and so can't be recovered if it is missing/corrupted.

What am I doing wrong, please?

 

 

 

0 Users found this helpful

Peter, welcome to these public User Forums.

I have never known Acronis to not correctly backup the Windows Bootmgr file so it is unlikely that it is missing.

There are several reasons why this error may be given!

If you have more than one internal disk drive, then the system BIOS may be looking at the wrong drive to try to find BOOTMGR.

If your PC supports both Legacy and UEFI BIOS boot modes, then you may have restored a UEFI boot backup image using Legacy BIOS boot mode for the Acronis rescue DVD media - this would attempt to migrate the backup image from having an EFI System partition to having a System Reserved partition instead, but this type of reverse migration does not work!

If you have had the option to upgrade the PC from Windows 10 to 11, then it has to be UEFI boot capable to permit this.

Acronis rescue media can be used in both Legacy and UEFI boot modes.

KB 59877: Acronis True Image: how to distinguish between UEFI and Legacy BIOS boot modes of Acronis Bootable Media

KB 63295: Acronis True Image 2020: How to restore your computer with WinPE-based or WinRE-based media

Note: If your Acronis recovery DVD is the same one that was used to install ATI 2020 then it is a Linux based recovery disc, not WinPE / WinRE media.

Many thanks for taking the time to try to help me, but I'm afraid I don't understand a word of it !

Looks like I'll just have to hope that this was a one-off glitch which is unlikely to be repeated.

All the best.