
I didymium research and find an operating system. Is reformate the drive (losing all the important files). After downloading some stuff from the net i off the but the press any button does not appear. I am new to laptop then when i on it again the message appears. I think what your going to have to do When i on the laptop i jumps straight to the bootmgr missing screen this kind of thing. I downloaded the win7 iso and i dont know how to enter the BIOs from there plese help. RECOMMENDED: Click here to fix Windows errors and optimize system performance If the two options fail to work, you can drop to the Command Prompt at the Advanced Options page to fix the problem. However, some computers do not have a recovery partition hence the need to use a physical disc containing the Windows installer. Your computer has a special recovery partition that enables you to boot in the Windows Recovery Environment. Another way is to boot from the Recovery Partition or the Windows Installation Media. It will scan problems and try to fix it up. Most cases of boot errors will instigate Windows to automatically run a repair setup. Seeing that Windows fail to boot can be stressful but there are several ways on how to fix boot errors. Otherwise, you can manually use the Windows Recovery Environment to troubleshoot the problem. Some versions of Windows can recover from these problems by automatically running a Startup Repair.

FATAL: No bootable medium found! System halted.Once you encountered a boot error, you will see messages such as these:

Some of the reasons why your Windows fail to start when your system partition is corrupted, has missing files or damaged. If you have turned your computer on and you noticed that Windows will not start, you are experiencing a Boot Error. 3. More info on bootmgr missing problem.
