Error booting into Windows, Bootmgr is missing

Toggle sidebar Toggle sidebar
R

robbo220

Distinguished
Mar 21, 2011
4
0
18,510
Hello,

I have been dealing with this problem all day long so far and I'm hoping someone here might be able to help me. This morning I rebooted my computer and got the "Bootmgr is missing" error and couldn't boot into Windows (the error comes up right before the starting windows screen would normally come up). I tried doing an automatic repair from the Windows dvd to no avail. I tried the manual way (using the command prompt) to no avail. Finally I had enough and did a format and re-install of Windows.

I am still getting the "bootmgr is missing" error. The only way I can get into Windows is if I go into bios and boot from one of my dvd drives (for some reason one drive doesn't bring up the install windows screens).

Is there something I am missing here? Is there some way to re-associate the bios with the bootmgr? I am completely at a loss on how to fix this issue. Please help if you have any ideas.

Computer Specs:
MSI 870A-G54 mboard
AMD Phenom II X6 processor
AMD Radeon HD6950 video card
8gb of ram
Windows 7 64 bit

Again if anyone has any ideas please let me know. Thank you in advance.
 
Solution
Tom Tancredi
Your mixing things up between the Hard Drive and the DVD Drive a little.

The DVD loading is by design in order for you to be able to INSTALL Windows or commit to do REPAIRS.

The MBR (Master Boot Record) is then recorded to the Hard Drive when the install process begins and stores the 'software' that when BIOS completes it's check (that is a keyboard, that is a monitor, etc.) and hands off to the Hard Drive to LOAD a OPERATING SYSTEM, the MBR contains the information to say "look at this drive and load this OS files".

What your error is, that MBR is no longer correct, so the computer can't figureout what it is supposed to do with the MBR after BIOS is completed its job.

Sort by date Sort by votes
R

robbo220

Distinguished
Mar 21, 2011
4
0
18,510


This one is a bit weird. If I attempt to reboot and have set the bios to boot from the hard drive, I get the bootmgr is missing error. If I instead set the bios to boot from one of my DVD drives (I have two) and I put my Windows DVD in that drive, its almost like the DVD acts as the replacement boot manager (I get into windows with no problems and I don't have to go through the windows setup screens).

I do not have multiple OSes on this computer. Also once I am in Windows, I can access the drive with no problems. HDTune doesn't indicate any problems with the system drive either.

The only other thing I can think of is somehow my boot order in bios got screwed up somehow but at this time I don't have the desire to mess with the boot order since I am currently able to use the computer as long as I don't have to reboot. I'm thinking that I'm going to try messing with it some more later tonight or tomorrow morning. After I am done with that, if I am able I will post an update to this thread. Thank you for the response and if anyone else has any ideas on what might be going on, please let me know. Again thank you for the help.
 
Upvote 0 Downvote
Tom Tancredi

Tom Tancredi

Judicious
May 9, 2013
4,999
0
32,960
Your mixing things up between the Hard Drive and the DVD Drive a little.

The DVD loading is by design in order for you to be able to INSTALL Windows or commit to do REPAIRS.

The MBR (Master Boot Record) is then recorded to the Hard Drive when the install process begins and stores the 'software' that when BIOS completes it's check (that is a keyboard, that is a monitor, etc.) and hands off to the Hard Drive to LOAD a OPERATING SYSTEM, the MBR contains the information to say "look at this drive and load this OS files".

What your error is, that MBR is no longer correct, so the computer can't figureout what it is supposed to do with the MBR after BIOS is completed its job.



Right it sounds like the BOOT files / or BOOT DRIVE setting to the drive is hosed. Usually when this happens only a reinstall of the OS is the real fix. I wouldn't rely on HDTune, inside Windows running over the HD and expecting to get good results. Normally it is a Fake Positive result because your sort of looking at the Gas Guage on why your car won't drive, that has nothing to do with the air guages in the four flat tires you have (if you get the meaning).



NO this is a false presumption, as your BIOS appears to be working perfectly fine, the problem is when it hands off to the HD to load the OS the HD responds back "HUH? Whats a OS? What do you mean boot?", hence the error message.

Have you tried to do a REPAIR via the Windows DVD? If that won't fix it, and you can bypass the error to get into Windows as your mentioning I would back up any critical Docs, Pics, Music (nor programs) to a external drive (Windows Easy Transfer is a nice tool to do this all for you) then look at reinstall Windows, then everything all over again (you can then use Windows Easy Transfer to restore the data back to the machine too).
 
Upvote 0 Downvote
Solution
A

Abhay13

Honorable
Nov 16, 2013
9
0
10,510
Insert your Windows Vista or Windows 7 disk into your DVD player and restart your computer.
The next screen you see should have the Language, Time and Currency and Keyboard boxes.
In the lower left side there are two options: “What to know before installing Windows” and “Repair your computer.”
Click on “Repair your computer”
Windows will then try to find the installation directory for Vista or Windows 7, depending on what you have.
Next up is a screen with a box called Recovery Options. Click the first option, Startup Repair.
You’ll see a Startup Repair box with the message “Startup Repair is checking your system for problems…”
When it’s done, it will prompt you to reboot. If there is more than one problem it may reboot again to continue repairing.
At this point, you can remove the DVD, reboot and everything should be working.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom