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Solved bootmgr missing


SteveKent

Member
Member
Posts
11
#1
After having to reinstal win 8 due to stupidity on my part I am now getting the bootmgr missing.

I have tried doing what it says in the MS page to rebuild it, but it still says it's missing.

Note Use the Bootrec.exe tool to troubleshoot "Bootmgr Is Missing" issue. If rebuilding the BCD does not resolve the startup issue, you can export and delete the BCD, and then run this option again. By doing this, you make sure that the BCD is completely rebuilt.

To do this, type the following commands at the Windows RE command prompt:

  • bcdedit /export C:\BCD_Backup
  • c:
  • cd boot
  • attrib bcd -s -h -r
  • ren c:\boot\bcd bcd.old
  • bootrec /RebuildBcd


I have followed this to the letter, but it still says bootmgr missing on startup.

Under command prompt C:\Boot I now have

20,480 BCD
77,824 bcd.old

(along, of course, with a load of other stuff)

So it is there

I have 3 discs

vol 1 is d: and is for data (d:data)
vol 2 is c: and is for software, (this contains the windows)
vol 3 is f: and is just a data backup from d: (f: data backup)

all the commands run under bootrec are successful and it finds the windows installation under c:

Any other ideas?

Thanks, Steve

ps for those interested in the stupid part...
my ISP wanted me to check the download speed in safe mode and the way I got into SF was by altering the msconfig file.

Trouble then started when it would not recognise my password, or the 4 digit quick code I had chosen.

So that was it as I then could not get back to the normal instal.


Reinstall kept on hanging, even when I reloaded 7 then tried 8 on top, no go.

Turned out it did not like the hdmi cable to the tv attached, when I removed this all went ok but in the meantime after speaking to MS support for hours they had me reformat c: to get rid of anything windows.

So this morning managed to get win 8 to instal, but as soon as I tried to start, it come with the bootmgr missing deal.

 

My Computer

System One

  • OS
    Windows 8

RayMulder

Member
Member
Posts
17
#2
Try this, it works for me...Boot your Windows DVD and enter command line...by choosing repair options, then do these commands in order:

bcdedit
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

Hope it works for you.
 

My Computer

System One

  • OS
    Windows 8 Pro
    System Manufacturer/Model Number
    Fruit Salad
    CPU
    Intel Pentium Dual core E5700 @ 3GHz
    Motherboard
    Biostar G413DB
    Memory
    4G
    Graphics Card(s)
    Nvidia GT 610
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster LED S23B370
    Screen Resolution
    1920 x 1080

SteveKent

Member
Member
Posts
11
#3
Try this, it works for me...Boot your Windows DVD and enter command line...by choosing repair options, then do these commands in order:

bcdedit
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

Hope it works for you.
Under what command prompt? Was is X:\Sources, C:, or C:\Boot?

Thanks, Steve
 

My Computer

System One

  • OS
    Windows 8

RayMulder

Member
Member
Posts
17
#5
Try this, it works for me...Boot your Windows DVD and enter command line...by choosing repair options, then do these commands in order:

bcdedit
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

Hope it works for you.
Under what command prompt? Was is X:\Sources, C:, or C:\Boot?

Thanks, Steve
Hi Steve you do it under X:\Sources...although I think it should works in either because X is just a virtual drive...
 

My Computer

System One

  • OS
    Windows 8 Pro
    System Manufacturer/Model Number
    Fruit Salad
    CPU
    Intel Pentium Dual core E5700 @ 3GHz
    Motherboard
    Biostar G413DB
    Memory
    4G
    Graphics Card(s)
    Nvidia GT 610
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster LED S23B370
    Screen Resolution
    1920 x 1080

RayMulder

Member
Member
Posts
17
#7
bcdedit is in the c:\Windows\System32 directory so X drive probably has paths set to find it...so you are right when you say it does not work from C:\ ...so X:\Sources would be the best bet, else change directory to C:\Windows\System32
 

My Computer

System One

  • OS
    Windows 8 Pro
    System Manufacturer/Model Number
    Fruit Salad
    CPU
    Intel Pentium Dual core E5700 @ 3GHz
    Motherboard
    Biostar G413DB
    Memory
    4G
    Graphics Card(s)
    Nvidia GT 610
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster LED S23B370
    Screen Resolution
    1920 x 1080

SteveKent

Member
Member
Posts
11
#8
I've just started the re-instal, but if I still have a bootmgr problem, I'll go to C:\Windows\System32 to do the bootrec commands.

Thanks,

Steve
 

My Computer

System One

  • OS
    Windows 8

theog

VIP Member
VIP Member
Gold Member
Posts
5,591
#12

My Computer

System One

  • OS
    ME, XP,Vista,Win7,Win8,Win8.1
    Computer type
    PC/Desktop
    Other Info
    Notebooks x 3

    Desktops x 5

    Towers x 4

SteveKent

Member
Member
Posts
11
#14
As you are reinstalling.

Try Cleaning the HD Drive, using Step one in this tutorial:
SSD / HDD : Optimize for Windows Reinstallation - Windows 7 Forums
& than Reboot PC.


http://www.eightforums.com/tutorials/2299-clean-install-windows-8-a.html


If you have a uEFI BIOS Follow this tutorial to install Windows.
How to install Windows 64 bit on a uEFI BIOS:
http://www.eightforums.com/tutorial...e-firmware-interface-install-windows-8-a.html
Excellent, thanks, used Diskpart and clear all, loaded W8 and boots up every time.

Thank you so very much,

Steve
 

My Computer

System One

  • OS
    Windows 8

theog

VIP Member
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Gold Member
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5,591
#15
You are welcome. :dinesh: Well done. :dinesh:
 

My Computer

System One

  • OS
    ME, XP,Vista,Win7,Win8,Win8.1
    Computer type
    PC/Desktop
    Other Info
    Notebooks x 3

    Desktops x 5

    Towers x 4

RayMulder

Member
Member
Posts
17
#16
The only thing I can think of from this angle is that your BIOS is not reading the correct disk at boot.
A new installation should write the MBR automatically unless you have specified some other config yourself.
You can check this easy if you have a bootable gParted disk and look at the file system on your disk(s).
Press F9 (on some BIOSs) at boot to select a disk to boot from or edit your BIOS disk boot sequence, it is possible that your BIOS has lost the settings. Recommendation is to set BIOS back to default.
 

My Computer

System One

  • OS
    Windows 8 Pro
    System Manufacturer/Model Number
    Fruit Salad
    CPU
    Intel Pentium Dual core E5700 @ 3GHz
    Motherboard
    Biostar G413DB
    Memory
    4G
    Graphics Card(s)
    Nvidia GT 610
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster LED S23B370
    Screen Resolution
    1920 x 1080

RayMulder

Member
Member
Posts
17
#17
Sorry I did not see you got sorted. Enjoy Windows 8, I think it is great, even with the Metro Start.
 

My Computer

System One

  • OS
    Windows 8 Pro
    System Manufacturer/Model Number
    Fruit Salad
    CPU
    Intel Pentium Dual core E5700 @ 3GHz
    Motherboard
    Biostar G413DB
    Memory
    4G
    Graphics Card(s)
    Nvidia GT 610
    Sound Card
    Onboard
    Monitor(s) Displays
    Samsung SyncMaster LED S23B370
    Screen Resolution
    1920 x 1080

SteveKent

Member
Member
Posts
11
#18
No worries, problem with "clear all" even though it sorted the install it then affected activation as it was an upgrade and now there was no copy of Win 7 anywhere.

Anyway, rung MS up and because of the original install problems they sorted out the activation for me.
 

My Computer

System One

  • OS
    Windows 8
#19
Try this, it works for me...Boot your Windows DVD and enter command line...by choosing repair options, then do these commands in order:

bcdedit
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

Hope it works for you.
Hi. I had the bootmgr missing error as well and itried your fix and now Ihave a different error message: An operating system wasn't found. Try disconnecting any drives that don't contain an operating system.

Here is what originally happened.

In my stupidity, I went and set my other partition as active thinking it would make searching and drive access faster. I am dual booting from Windows 7 Ultimate and Windows 8 Pro. Windows 7 was the original OS, and I partitioned My single HDD and loaded Windows 8 Pro to Dual boot.

So I first got the Bootmgr is missing error, tried your fix and now I get the second error that I listed...

Any suggestions? By the way, I decided to bite the bullet and re install Windows 8, but it will not recognize my key(That is what the error said, not that it was invalid, it didn't recognize it).

Update

I did a automated windows 8 repair and now it just boots into windows 7. I am going to try and re activate the windows 8 partition and see how it goes...

Update

Well there is no option to make the partition active. it sees it but...
 
Last edited:

My Computer

System One

  • OS
    Windows 8 Pro

telboy

New Member
Posts
9
#20
Hi, i recently did an update on Directory Opus which I use in place of file explorer, only to get 'Missing Bootmgr' on reboot. I tried every option i could see on win8 forums, but to no avail. Alt+Ctl+Del did nothing - leaving the machine stuck on the A+C+D+ page. I could not get into bios to check that i have a dvd selected to boot from. I tried each drive and it did not see the disc. after several days of this, i got up this morning and decided to try to reinstall win8 (hoping the maching would see the disc! i have two win8 discs - i run it on two machines. so, i put a disc in each of my drives, booted up and went to have breakfast. to my amazment, when i come back i had my usual logon screen up - entered my password and all looks good (also Directory Opus has updated too!) as expected, i am highly chuffed, but i do wonder how this worked??
 

My Computer

System One

  • OS
    win 8