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ADM ADMX
File conversion

Convert ADM to ADMX

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Is it possible to convert ADM to ADMX?
Yes - ADM converts to ADMX.

Microsoft's free ADMX Migrator tool converts .adm files to .admx/.adml pairs suitable for the Central Store on Windows Vista+ domain controllers. The converted ADMX produces the same policy settings without inflating SYSVOL.

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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How to convert ADM to ADMX

Converting a .ADM file to .ADMX lets you open the content in software that prefers the .ADMX format, though some details may change compared with the original. We are still putting together the list of programs that handle .ADM files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.ADM Windows Group Policy Administrative Template

An ADM file is a Windows Group Policy Administrative Template - a plain text file that defines registry-based policy settings for the Group Policy Object Editor. It was the standard format…

Open .ADM details →
.ADMX Microsoft administrative XML template file

A .ADMX file is associated with Microsoft administrative XML template, a system file.

Open .ADMX details →