I accidentally changed my M.2 drive to dynamic, and now I don’t know how to revert it.

How to Revert an M.2 SSD from Dynamic to Basic Disk: A Step-by-Step Guide

Recently, I encountered an issue with my M.2 solid-state drive (SSD) after mistakenly converting it to a dynamic disk. This change has caused significant access problems, making the drive appear in BIOS and File Explorer, yet rendering it inaccessible through standard Windows tools such as Device Manager, Control Panel, and Disk Management. If you find yourself in a similar situation, this guide will walk you through understanding the problem and restoring your drive to its original, functional state.

Understanding the Issue

In Windows, disks can be configured as Basic or Dynamic. Basic disks use standard partitioning, suitable for most users, while Dynamic disks offer advanced features like spanning or mirroring, primarily intended for enterprise or advanced workloads.

Converting a disk to a dynamic disk can sometimes lead to complications, especially if the drive contains important data or if the conversion isn’t properly managed. When a drive becomes dynamic, certain tools may lose visibility or access to it, particularly if the system’s disk management has not refreshed correctly post-change.

Symptoms of a Converted M.2 Drive

The drive is visible in BIOS and File Explorer, suggesting hardware and basic driver functionality are intact.
The drive does not appear in Device Manager, Control Panel, or Disk Management.
The drive has been uninstalled via properties, and it appears to have disappeared system-wide.

These symptoms indicate that Windows recognizes the hardware but cannot manage or access the disk’s volume due to its status as a dynamic disk or driver misconfiguration.

Steps to Revert the M.2 Drive to a Basic Disk

1. Verify Hardware and Connection

Restart your system and check BIOS/UEFI settings to ensure the drive is detected correctly.
If the drive is visible in BIOS but not in Windows Disk Management, proceed with software solutions.

2. Use DiskPart for Disk Conversion

Open Command Prompt with administrative privileges:
Press Windows + X and select Command Prompt (Admin) or Windows Terminal (Admin).
Launch DiskPart by typing:

diskpart