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Missing Bootmgr after cloning

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OS is Win 10 April update, dual boot with Win 7 SP1, T I 2016.

 

Cloning to an external SSD has always worked fine.  This time the cloning operation hung before the reboot.  After 10 to 12 minutes of no action I canceled the operation and rebooted manually.  I got a message that Bootmgr was missing.  I used T I's rescue CD to restore a full image, including the hidden partitions, which appeared successful.  Still no Bootmgr on my system disk.

Luckily my two external backup drives seem to have Bootmgr on them and booting with one of them connected works.  But that's not a real solution.

How do I restore Bootmgr to my system drive?  Nothing I've found on line has worked.

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Kim, welcome to these User Forums.

Please see forum topic: [IMPORTANT] CLONING - How NOT to do this which was written in response to this type of issue.

Cloning dual-boot systems is also more complicated because the location of the Windows Boot Configuration Data store can be in a variety of different locations depending on how your different versions of Windows were installed and whether the BCD is on a dedicated Microsoft System Reserved partition or stored within an OS partition.

If you have a working bootmanager configuration on one of your external disk drives, then you could try using a utility like EasyBCD to try to move it to where you want it to be stored.  The alternative would be to restore a backup of your whole working dual-boot system, assuming you have this and it includes the normal BCD store location.