Download the Windows Media Creation Tool from the official Microsoft website, run it on another computer and create a recovery disk.

3 hints on how to deal with issueįirst, create a recovery disk.

Therefore, before replacing the boot disk on your PC, you need to know for sure that the boot files have been moved to another disk. In such a case, if the remote disk was the first boot device in the BIOS, the boot files were installed on that disk, even if Windows was on a different physical disk. This file can be deleted due to a failed installation of Windows Automatic Updates, incorrect OS updates, etc.ģ: One of several hard drives was removed. Boot Manager is usually located on a separate NTFS partition created at the beginning of the disk during installation. Let's try to sort all the reasons for the “Boot Manager failed to find OS loader” into several categories:ġ: Damaged boot partition (both NTFS and FAT32) on Windows PC due to improper shutdown of the computer, sudden power outage, physical damage to your computer's hard drive, etc.Ģ: The bootloader has been removed, especially in Windows 7 and later. In this case, Boot Manager cannot find the OS loader when the computer boots, and the boot repair tool starts with the message “missing OS loader”. This error is displayed when Startup Repair fails to fix problems on a non-bootable PC. Are you ready? Let's read! Boot Manager failed to find the OS loader: what is that?

Windows boot loader