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.

Some users have complained about this problem that when they start their computer, it doesn’t boot. Instead, a Default Boot Device Missing or Boot Failed blue ...

A newly discovered and previously undocumented UEFI (Unified Extensible Firmware Interface) bootkit has been used by attackers to backdoor Windows systems by hijacking the Windows Boot Manager since ...