BOOTMGR is missing?

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  1. Posts : 49
    Win7 x64 7232 // XP x86 SP3
       #1

    BOOTMGR is missing?


    Hi,

    I just finished installing W7 x64 7068. This PC already has XP on a different drive (not just different partition). The W7 drive is set to boot first in BIOS.

    After the first reboot I got the "BOOTMGR is missing, ctrl+alt+del to restart" message. If I boot with the XP drive, there is an option for W7 and I can log on with that.

    I used the startup repair tool on W7 DVD but it did not detect any problem. Tried easyBCD to reinstall the Vista bootloader but that didn't fix it either.

    How can I fix this? And how should I install W7 so that each drive can boot on its own? I can select which drive to boot quickly after POST so I don't want the 2 OSes to tangle up like that

    Thanks.
      My Computer


  2. Posts : 910
    Win 7
       #2

    You will need to boot from the xp drive that is where the boot manager for all windows operating systems on your machine is located.
      My Computer


  3. Posts : 49
    Win7 x64 7232 // XP x86 SP3
    Thread Starter
       #3

    Well I played with it for a bit... Disabled the other drives in BIOS then repaired with W7 DVD. Now it finds the problem and fixes it.
      My Computer


  4. Posts : 910
    Win 7
       #4

    Technically there was no problem until you disabled the other drives and 7 could not find the boot manager. When you install windows 7 it replaces the XP boot manager on your XP drive, that is what will be used to select which operating system you wish to boot. Disabling drives and installing a boot manager on each drive for each OS is not the norm.
      My Computer


  5. Posts : 2
    Windows 7
       #5

    same problem


    I have vista install first in c drive, and installed win 7 on the e drive, when i tried to format the c drive and reboot to win 7, it come out that bootmgr.exe is missing.
      My Computer


  6. Posts : 5,807
    Windows 7 Home Premium x64 - Mac OS X 10.6.4 x64
       #6

    JeffLogan said:
    I have vista install first in c drive, and installed win 7 on the e drive, when i tried to format the c drive and reboot to win 7, it come out that bootmgr.exe is missing.
    Put in your 7 DVD (or USB key) and press F5,6,7,8 (always forget which one) and choose to repair the computer. This might take a few times but it should repair the lost bootmgr and you should be good to go
      My Computer


  7. Posts : 1,179
       #7

    harmann said:
    Well I played with it for a bit... Disabled the other drives in BIOS then repaired with W7 DVD. Now it finds the problem and fixes it.
    can you explain in detail how you did this... I have the same problem and with unplugging all other HDDs and repair-reboot-repair-reboot 5x I still get this:
    Microsoft Windows [Version 6.1.7600]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.
    C:\Windows\system32>bcdedit
    Windows Boot Manager
    --------------------
    identifier {bootmgr}
    device partition=N:
    path \bootmgr
    description Windows Boot Manager
    locale en-US
    inherit {globalsettings}
    default {current}
    resumeobject {7800cce0-7c49-11de-bc70-801ac4a4f209}
    displayorder {current}
    toolsdisplayorder {memdiag}
    timeout 5
    Windows Boot Loader
    -------------------
    identifier {current}
    device partition=C:
    path \Windows\system32\winload.exe
    description Windows 7 Ultimate
    locale en-US
    osdevice partition=C:
    systemroot \Windows
    resumeobject {07c6c1b8-7ec8-11de-8a31-806e6f6e6963}
    C:\Windows\system32>
    and N: is not on the same HDD that C: is.
    these files are found by cmd-> run as admin type "bcdedit"
      My Computer


  8. Posts : 2,111
    Win7 Build 7600 x86
       #8

    Hi,

    Set your hidden and system files to visible (in explorer -> mapoptions)


    Copy the bootmgr file from the N: drive to the C: drive manually.

    Next in bcdedit

    change "device partition=N:" to "device partition=C:"

    That's it
      My Computer


  9. plr
    Posts : 1
    win 7
       #9

    New hdd new win 7 install missing boot manager


    Ok , i have a hp 2 yr. Old comp with 6gigs ram brand new wd hdd 500 gig
    (i do have other hdd's disk connected to system with vista and xp systems installed on them however i have the new wd installed via bios setings as primary hdd . Installed win 7 to new wd hdd and installed ok until i rebooted . (this is after removing install disk from dvd drive ) i get the missing boot manger message. Odd thing is i can put the win 7 install disk back in and reboot and win 7 operates normally.
    Alsost like the cd's with games on them were you had to have the cd in drive to play the games.
    Whats happening ? Does the install put the bootmanger file someplace other than drive "c" . And how does one rectify this problem?

    I'm thinking of removing the other hard drives and install win 7 again with only the one wd hdd installed and see if that does the trick.
    Also the new wd hdd that i originally installed to didn't have an operating suystem installed on it
      My Computer


  10. Posts : 1
    Win 7
       #10

    SquonkSC said:
    Hi,

    Set your hidden and system files to visible (in explorer -> mapoptions)


    Copy the bootmgr file from the N: drive to the C: drive manually.

    Next in bcdedit

    change "device partition=N:" to "device partition=C:"

    That's it
    How to edit in bcdedit? And what file(s) to move?
      My Computer


 
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