windows bootmgr (uefi) error?

Question

hi everyone,

I have a small issue. I have a 8 series chipset motherboard, from which i installed window 7. As I did, I realised I could install windows using UEFI instead of legacy boot. Since i already had most of my programs done and ready, i decided to do it in place. I downloaded a linux boot disc, and used it to move my windows partition to make space for an efi partition, and left it blank. I also converted it non-destructively to gpt partition table. I used some cmd commands back in windows (booted still in legacy) to format and label the efi partition as such, with fat32 filesystem and efi partition type. Once done, i assigned a drive letter to it, and, copied the {efi} folder from a working windows 7 uefi laptop to the efi partition. I also checked the bcd was as i wanted it, and rebooted. I now saw a windows bootmgfw.efi entry, and selected it. once done, it said: Windows failed to start. {some more text} Error code: 0x000000e An unexpected error has occured. I double and triple checked the bcd pointed to the C: drive and more, yet the same bcd {with the winload changed from efi to exe) works on the legacy boot. I sfc'd the winload.efi in both system32/winload and system32/boot/winload and both passed. I changed from system32 winload to system32 boot winload, they do the same thing. What could this be? I know im not supposed to do it that way, but since I know it works from previous conversions, I am safe to say that I can repair from the command line. I will try the windows 7 usb to repair it, but if that fails, I wanted some extra help also.

Answer 1

also note the bcd in question is the one located in the EFI partition, not the c: drive.

Answer 2

Thanks for the reply. I forgot to mention I had already tried entering winre from the install "USB" as i don't have a dvd (i think its time for that to pass away) It didn't report any errors, so it just shutdown. I booted the usb from uefi to make sure it edits the correct files. I don't have a system restore point since i didn't get to install any updates or make one, its a pretty new installation. bootrec did indeed help and make a bcd but that one led to the same error. So i can try editing manually. Also the error message is "An unexpected error has occurred" and it happens a second after the starting windows logo. It doesn't show a bcd data file is missing required informations. but i can infer that the code matters, not the text. I tried using a program called "visual bcd" since i can boot to my installation from legacy boot, and it shows what i had read using bcd boot and making it print the bcd. I will try the windows vista help, and don't worry, i know vista is almost = to windows 7 in terms of boot, so i will try it. thanks for all the help so far.

Answer 3

Hi,

Thank you for posting your query on Microsoft Community forums. I appreciate your efforts taken to resolve the issue.

Do you have a Windows 7 installation disc?

Based on the error message, that you get now, I would suggest you to try the following methods and check if the issue persists. You might need to have a Windows 7 installation disc for a few methods.

Method 1: Startup Repair from the Windows Recovery Environment (WinRE)

1. Insert the Windows 7 installation disc into the disc drive, and then start the computer. 
2. Press a key when the message indicating "Press any key to boot from CD or DVD …". appears.
3. Select a language, a time and currency, and a keyboard or input method, and then clickNext.
4. Click Repair your computer. 
5. In the System Recovery Options dialog box, choose the drive of your Windows installation and click Next. 
6. At theSystem Recovery Options Dialog Box, click onRepair your computer.
7. Click the operating system that you want to repair, and then clickNext.
8. In the System Recovery Options dialog box, click Startup Repair.

Refer the following link for more information:

http://windows.microsoft.com/en-US/windows7/What-are-the-system-recovery-options-in-Windows-7

To know more about “Startup Repair” visit the following link:

http://windows.microsoft.com/en-us/windows7/Startup-Repair-frequently-asked-questions

Method 2: Rebuild BCD using the Bootrec.exe tool

To run the Bootrec.exe tool, you must start Windows RE. To do this, follow these steps:

1. Put the Windows Vista or Windows 7 installation disc in the disc drive, and then start the computer.
2. Press a key when you are prompted. Select a language, a time, a currency, a keyboard or an input method, and then click Next.
3. Click Repair your computer.
4. Click the operating system that you want to repair, and then click Next.
5. In the System Recovery Options dialog box, click Command Prompt.
6. Type Bootrec.exe, and then press ENTER.

Refer the following link for more information:

How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows

http://support.microsoft.com/kb/927392

Method 3: Use the Windows Recovery Environment (WinRE) to run System Restore

1. Insert the Windows 7 installation disc into the disc drive, and then start the computer. 
2. Press a key when the message indicating "Press any key to boot from CD or DVD …". appears.
3. Select a language, a time and currency, and a keyboard or input method, and then click Next. 
4. Click Repair your computer. 
5. In theSystem Recovery Options dialog box, choose the drive of your Windows installation and clickNext
6. At the System Recovery Options Dialog Box, click on System Restore.
7. Follow the System Restore Wizard instruction as usual and choose the appropriate restore point.
8. Click Finish to restore the system.

To know more about “System Restore” visit the following link:

http://windows.microsoft.com/en-us/windows7/System-Restore-frequently-asked-questions

If the above methods do not help, you may try to follow the methods mentioned in this article:

Error message when you start Windows Vista: "The Windows Boot Configuration Data file is missing required information"

http://support.microsoft.com/kb/927391

Note: This article also applies to Windows 7 Operating system as well.

Hope this information is helpful. Do let us know if you need any further assistance, we'll be glad to assist you.