If there are multiple drives installed in the computer, then it can create confusion as to which drive has a Bootloader. This scenario usually happens when Master Boot Record is on the wrong drive.

The boot configuration data for your PC is missing or contains errors problem occurs when a computer boots up, and the Windows Boot Manager encounters an issue with ...

Whenever I try and install win7 (iso image) I get the boot manager window saying that a piece of hardware is failing or not connected properly. I've tried ...