Extract text from Windows Boot Manager files (BOOTMGR)
To convert BOOTMGR Boot files to another format, you need Microsoft Windows or other System software.
To convert other file formats to the "Boot Loader Component" file type, you need software like Microsoft Windows or a similar tool.
The .bootmgr file is the Windows Boot Manager, a critical system component introduced by Microsoft to replace the older NTLDR. It sits in the root directory of the active partition, reads Boot Configuration Data (BCD), and loads the operating system kernel.
Users typically interact with boot settings via the bcdedit.exe command-line tool within Microsoft Windows, rather than opening the file directly. The primary disadvantage of this file format is its extreme fragility. It is a proprietary, compiled binary without human-readable content. It is completely locked down by the OS. Modifying, moving, or deleting it results in a fatal "BOOTMGR is missing" error, rendering the computer unbootable.
There are no practical target formats for a .bootmgr file. You cannot convert it to a document, image, or generic executable without destroying its boot capability. Standard online converters fail because it lacks a standard document structure and relies on low-level hardware execution.
This is a closed, proprietary format designed specifically for the motherboard boot sequence.
Convert.Guru analyzes your BOOTMGR file, detects the exact format, and lets you read the text inside.
Users also converted EFI files.
If you want to convert BOOTMGR file to , you can use Microsoft Windows or similar software from the "System Boot Loader" category. In the File menu, look for Save As… or Export….
To convert files to BOOTMGR, try Microsoft Windows or another comparable tool in the "System Boot Loader" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our BOOTMGR converter.