Make sure to note your Windows version (XP, Vista, 7, 8, 10, or Windows 11) before you download EasyRE. EasyRE is currently available for Windows XP, Vista, 7, 8, Windows 10, and Windows 11 and can be downloaded and created on any PC. Fix Cannot find OS Loader on Windows Fix #1: Use Easy Recovery EssentialsĮasy Recovery Essentials is guaranteed to fix the “Failed to find OS Loader” error automatically using its built-in Automated Repair option. It’s important to be sure that the boot files have been moved to a different drive before replacing a boot disk in your PC. If the disk that was removed or replaced was the first boot device in the BIOS, the boot files would have been installed to this drive, even if Windows was on a different physical disk. If your computer had more than one hard disk, and you have removed or replaced one or more of these disks, this error can occur. This file can be deleted due to a failed Windows Automatic Update installation, a failed attempt at upgrading the OS, or by viruses and other malware. On Windows 7 and above, BOOTMGR is typically located on a separate 100 MiB NTFS partition created at the beginning of your drive during setup. On Windows Vista, BOOTMGR is found in the root partition of your Windows installation drive (normally drive C:\). Windows Vista, Windows 7, Windows 8 and Windows 8.1 use the new BOOTMGR bootloader. The filesystem on the boot partition can become corrupted as a result of an unsafe shutdown, sudden power loss, unsafe removal of local and/or external drives, or physical damage to your computer’s hard disk, amongst others.Ĭorruption of the boot partition is known to occur on both NTFS and FAT32 partitions. This error has been known to occur as a result of one or more of the following: Cause 1: Corrupt boot volumeĬorruption of the boot partition on a Windows PC can cause this error to present. Repair action: Boot configuration data store repair Clicking to view the contents of Startup Repair’s “Diagnosis and repair details” reveals the error to be “Boot manager failed to find OS loader” with one or more failed repair attempts. When attempting to use the automated repair feature of Startup Repair, it attempts to repair your PC but fails. Symptom 1: Startup repair fails with message “Boot manager failed to find OS loader” While the usual fix for a missing bootloader is to run Startup Repair, in this case, Startup Repair is unable to correct the problem for one or more reasons. In particular, this message indicates that Startup Repair was unable to find the correct BOOTMGR bootloader at the expected location(s). The error “Boot manager failed to find OS loader” is displayed when Startup Repair fails to correct problems with a non-booting PC. The following information on this error has been compiled by NeoSmart Technologies, based on the information gathered and reported by our global network of engineers, developers, and technicians or partner organizations.
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