To repair your boot sector, you need a Windows Installation disc. Please make in mind your current BIOS version and download the new version from the manufacturer's website, if you have anything problems, please consult your manufacturer. Please make sure the right hard drive is listed in the first place in the BIOS boot order.Īn outdated BIOS may result in an error message. If your system hard disk isn’t the first boot device, your computer will boot from another hard disk that has no boot files, then you’ll receive this error message. If such like devices aren’t bootable, you will get the BOOTMGR missing error.

Check errors for Your System Hard Driveĭisconnect the external storage device, like a USB flash drive, floppy disk, or external hard drive, etc. To fix BOOTMGR's missing errors in Windows 7/8/10/11, we’ll provide various solutions to help you out. You can try them one by one until the error message disappear and the system starts successfully. The boot sector or MBR on your system may be damaged or missing.ģ. You are trying to boot the computer from the external USB flash drive and there is no BOOTMGR file on that device.Ģ. So, what causes such boot error messages? There are several reasons listed below for these BOOTMGR errors:ġ. What should I do? Any help would be appreciated.”īesides, there are some similar error messages like “Couldn’t find BOOTMGR”, and “BOOTMGR is missing press any key to restart”. An error message displayed ‘BOOTMGR is missing press Crl+Alt+Del to restart’ instead, I have no idea what happened I just installed some widgets on my desktop yesterday.

We found that many many users look for help in the forums like that “Today I turn up my Sony laptop and try to boot from Windows 7, but it’s failed. In addition, you should be aware that the BOOTMGR file is read-only, and cannot be modified.

In most cases, the BOOTMGR file is located on the System Reserved partition, if you don’t have a System Reserved partition, the file must be located on your system partition typically the C drive. It was first introduced in Windows Vista to replace the NTLDR boot manager in previous versions of Windows like Windows XP. The BOOTMGR can read the Boot Configuration Data (BCD) and execute the winload.exe, then the winload.exe will load the essential drivers to help your system start.

BOOTMGR is a file named Windows Boot Manager.

Bootmgr is missing