Downloading Bootmgr for Windows 7 isn't as straightforward as downloading any other software because it's an integral part of the Windows operating system. However, here are the legitimate ways to obtain or repair Bootmgr:
If you are staring at a black screen with the dreaded error, you aren't alone. This error occurs when your PC cannot find the Windows Boot Manager, the critical piece of software that tells your computer how to launch Windows 7. windows 7 bootmgr download