bootmgr error, can't find a fix

smistarz · 06 Jan 2017

Hi,

I recently got a new motherboard, processor, SSD, and memory for my old, homebuilt desktop. I'm running Windows 10 which I downloaded as the free upgrade last year. I cloned the OS to my new SSD using EaseUS Todo 10.0. I've activated the new partition and upgraded my BIOS but when I try to boot with the new SSD I get the "bootmgr is missing" error. I'm at a loss as to what could be causing this and any help you can provide would be greatly appreciated. Thanks.

cottonball · 07 Jan 2017

smistarz,

Welcome to Ten Forums!

Have you tried using the Windows 10 DVD or USB install media and launching the option to "Repair your computer" and scan your new SSD for startup errors?

It should detect the problem and fix the master boot record (MBR) accordingly.

smistarz · 08 Jan 2017

Thanks for replying.

I don' t have install media because I downloaded the upgrade directly from Microsoft but I created a USB recovery drive, rebooted with it and the repair failed.

bootmgr error, can't find a fix-untitled.png

bootmgr error, can't find a fix-untiuntitledtled.png

Should I be using a different option?

Caledon Ken · 08 Jan 2017

You didn't mention this so I thought I would ask.

How is your new SSD disk partitioned, GPT or MBR? Assuming you cloned it from older system it might be MBR?

What setting are you using in your Bios, UEFI Boot mode or Legacy BIOS Boot mode? Must be Legacy if MBR Partition.

You very well have this all aligned in which case ignore this posting.

cottonball · 08 Jan 2017

After you answer the above questions from Caledon Ken, when you cloned the SSD did you have any other drives with partitions connected to the computer?

Were the boot files on the drive you cloned to the SSD?

Did you clone from a HDD to SSD?

Avocado · 08 Jan 2017

Look at post #24 in this thread: https://www.tenforums.com/installati...tml#post901772

Here are the short instructions:

GPT partition style

diskpart
list volume (note the volume letter where the Windows 10 is installed)
exit

bcdboot x:\windows (replace "x" with the volume letter of the Windows 10 partition)

BCDBoot copies the boot files from the Windows 10 partition to the EFI system partition and creates the Boot Configuration Data (BCD) store in the same partition.

MBR partition style

bootrec /fixboot
bootrec /fixmbr

diskpart
list volume (note the volume letter where the Windows 10 is installed)
exit

bcdboot x:\windows (replace "x" with the volume letter of the Windows 10 partition)

BCDBoot copies the boot files from the Windows 10 partition to the active partition on the primary hard drive and creates the Boot Configuration Data (BCD) store in the same partition.