Bootmgr is missing - Fix

How to Fix the "Bootmgr is missing" Error in Windows​

You may get this error while booting your computer.

   Information

This problem is not hardware related and can be fixed with a Windows 7 DVD OR a system repair disc.

Here's How:

NOTE: Sometimes it may take running a startup repair a few times before it fully fixes the startup issue.

1. Boot to the System Recovery Options screen.

2. Select the Startup Repair option. (See screenshot below)

3. Now click on Startup Repair. Run the startup repair and it will attempt to fix this issue.

NOTE: It will ask you to reboot your system. Reboot to see if it works. If it doesn't work, follow step 4.


4. Click on Command Prompt.
A) Type c: and press <Enter>.

   Note

C:\ is the drive letter where Windows 7 is installed. You may replace it with whatever drive letter you want where you have installed Windows 7.

B) At the C:\ prompt, type cd boot and press <Enter>.

C) At the C:\Boot prompt, type the following commands and press Enter after each command.

[B]bootrec /FixMbr[/B]
[B]bootrec /FixBoot[/B]
[B]bootrec /RebuildBcd[/B]

D) Now close the command prompt, remove the DVD and reboot your computer.
That's it,
Dinesh.

Related Tutorials

---

• How to Run a Startup Repair in Windows 7
• How to Use the Bootrec.exe Tool in Windows Recovery Environment
• How to Restore the Windows 7 MBR (Master Boot Record)
• How to Mark a Partition as Active in Windows 7

 

[cottonball]

Thank you for posting this helpful information!

Having a BOOTMGR is missing error on an ACER notebook running Windows 7 with a TDL4 infection.

The Windows Recovery Environment (WRE) is already installed by ACER.

Is a WRE CD/DVD needed to execute the following commands, or can the already installed WRE be used to execute them:
bootrec /FixMbr
bootrec /FixBoot
bootrec /RebuildBcd

Thanks for your help!

 

[Brink]

Hello Canardblanc,

You could use whatever method you like to open a command prompt at boot to use those commands at boot.

 

[cottonball]

Thanks for the prompt reply, Brink.

So, if the prompt with the option to Repair your computer appears, that means the Windows Recovery Environment is already installed, and it can be used without the need for a CD?

 

[Brink]

Most likely yes. When it's finished (like at the end of step 3), you would need to select the Command Prompt option back in the System Recovery Options screen to be able to enter the commands if the repair didn't work.

 

[cottonball]

Great help!!

Thanks.

 

[Brink]

You're most welcome.

 

[kenbalram]

Hello i'm new to this. I have been having this problem for a while now and after doing many hours, days and weeks of research i found many fixes for this problem but the one that worked for me was to change my RAMs. After testing everything and diagnosting everything, my RAMs were the problem all along. So if you think you are trying everything and nothing works, try replacing some hardware parts and see if that does the job.

 

[c4cyro]

i have a DELL Inspiron N5050.
i was having this problem right after i restored my PC using DELL DATASAFE yesterday.
but i fixed it successfully using my windows 7 DVD.
my question is that if i restored my PC to factory settings then why did this BOOTMGR problem occur only?
and will this problem occur again in future when i restore my PC??
please answer me.

 

[mohitdp]

Thanks a lot Dinesh!

Mohit

 

[lzl]

Really helpful Just deleted mine and was able to fix it due to ur instructions. THanks a lot!:devil:

 

[HoneycombAG]

Element is missing

You forget, most people have bootmgr or something on a partition labelled “System Volume Information”. I wasted a whole evening yelling my lungs out at this thing.

 

[JonathanV]

What is the full name of bootmgr?

 

[Brink]

What is the full name of bootmgr?

Boot Manager

 

[Lengendx]

I did these now instead of getting a white cursor I get the messages
Remove disks or other media.
Press any key to restart
I have nothing plugged in so I hit a key and get the following messages
Reboot and select proper boot device
Or insert boot media in secured boot device and press a key


Got any ideas?

 

[x BlueRobot]

Great tutorial

 

[danlwasson]

uh oh... RebuildBcd?

hi guys. Love the forum and have been getting a lot of help here today! I destroyed my win7 install this morning by messing with the registry (deleted the wownode entire key, bad idea...) anyhow now it wont start so I have a dell/alienware "repair" cd in there. after trying the steps above to get bootmgr working again, the 1st two were successful, but it's failed on the last step.

when I type bootrec /RebuildBcd it says, "Total identified Windows installations: 0"
then if i run repair, it says "Boot manager is missing or corrupt"
when i restart, it still says "BOOTMGR is missing, ctrl alt del to restart"

so i'm stuck on the last step - what's RebuildBcd trying to do?

 

[danlwasson]

hey me again - i found this - http://www.sevenforums.com/tutorial...ool-how-use-windows-recovery-environment.html and was able to get past the "windows installations: 0" by creating a new BCD. Now it says "windows installations: 1" - so I entered Y and it said that it was successful!

But, I restarted and it still says Bootmgr is missing :/

So any thoughts would be awesome! thanks

 

[x BlueRobot]

hey me again - i found this - http://www.sevenforums.com/tutorial...ool-how-use-windows-recovery-environment.html and was able to get past the "windows installations: 0" by creating a new BCD. Now it says "windows installations: 1" - so I entered Y and it said that it was successful!

But, I restarted and it still says Bootmgr is missing :/

So any thoughts would be awesome! thanks

Create a new thread, and someone will be able to help you

 

[nutz]

thanks it really helpd a lot

 

[yiberu]

bootmgr

after doing these steps it still says the same message
i also did the following
bcdedit /export C:\BCD_Backup
c:
cd boot
attrib bcd -s -h -r
ren c:\boot\bcd bcd.old
bootrec /RebuildBcd
but it didnt work so i tried again but it gave me an error that ren c:\boot\bcd bcd.old already exsits
thanks any help is really appreciated